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    Suppose you're in a rush, felling tired, not paying attention to your screen, and you send an email that could get you in trouble.

    Realisation will probably set in seconds after you've clicked “send”. You freeze in horrors and burn with shame.

    What to do? Here are four common email accidents, and how to recover.

    Clicking “send” too soon

    Don't waste your time trying to find out if the receivers has read it yet. Write another email as swiftly as you can and send it with a brief explaining that this is the correct version and the previous version should be ignored.

    Writing the wrong name

    The sooner you notice, the better. Respond quickly and briefly, apologizing for your mistake. Keep the tone measured: don't handle it too lightly, as people can be offered, especially if your error suggests a misunderstanding of their culture(i.e. incorrect ordering of Chinese names).

    Clicking “reply all” unintentionally

    You accidentally reveal(透露)to entire company what menu choices you would prefer at the staff Christmas dinner, or what holiday you'd like to take. In this instance, the best solution is to send a quick, light-hearted apology to explain your awkwardness. But it can quickly rise to something worse, when everyone starts hitting “reply all” to join in a long and unpleasant conversation. In this instance, step away from your keyboard to allow everyone to calm down.

    Sending an offensive message to its subject

    The most awkward email mistake is usually committed in anger. You write an unkind message about someone, intending to send it to a friend, but accidentally send it to the person you're discussing. In that case, ask to speak in person as soon as possible and say sorry. Explain your frustrations calmly and sensibly—see it as an opportunity to clear up any difficulties you may have with this person.

    When 19-year-old Sophia Giorgi said she was thinking of volunteering to help the Make-A-Wish Foundation (基金会)，nobody understood what she was talking about. But Sophia knew just how important Make – A –Wish could be because this special organization had helped to make a dream come true for one her best friends. We were interested in finding out more, so we went along to meet Sophia listen to what she had to say.

    Sophia told us that Make – A –Wish is a worldwide organization that started in the United States in 1980. ” It's a charity(慈善机构)that helps children who have got very serious illnesses. Make – A –Wish help children feel happy even though they are sick, by making their wishes and dreams come true, ” Sophia explained.

We asked Sophia how Make – A –Wish had first started. She said it had all begun with a very sick young boy called Chris, who had been dreaming for a long time of becoming a policeman. Sophia said lots of people had wanted to find a way to make Chris's dream come true —-so, with everybody's help, Chris, only seven years old at the time, had been a “policeman” for a day. ” when people saw how delighted Chris was when his dream came true, they decided to try and help other sick children too , and that was the beginning of Make – A –Wish, ” explained Sophia.

    Sophia also told us the Foundation tries to give children and their families a special, happy time. A Make-A-Wish volunteer visits the families and asks the children what they would wish for if they could have anything in the world. Sophia said the volunteers were important because they were the ones who helped to make the wishes come true. They do this either by providing things that are necessary, or by raising money or helping out in whatever way they can.

    Social media is our new travel agent, and it's changing the places we go. In some cases, the places we go. In some cases, the newfound fame brought about by social media platforms has helped to boost local economies and bring tourists to places they might never have discovered otherwise. In other cases, it's creating problems for countries and cities that are simply not equipped to deal with the influx(涌入) of tourists. Check out two of the incredible locations around the world that have gone viral on social media.

    Iceland

    This northern island nation has seen a dramatic surge(激增) in visitors over the past few years. One reason for that is the so-called "Game of Thrones effect,". This, combined with the availability of cheap flights and some very effective marketing campaigns, has made Iceland a popular travel destination. The number of tourists almost doubled from 566,000 to over 1 million between 2011 and 2015, according to Iceland's tourism board.

    While this influx of visitors has brought a much-needed boost to the economy post-recession(经济衰退), it's also pushed up prices for residents and put pressure on the infrastructure. Locals complain of tourists destroying the fragile ecosystem and leaving a mess behind them as they trample over the formerly untouched natural sites.

    Cuba

    According to Cuba's ministry of tourism, four million visitors went to Cuba in 2016, an increase of 13 percent from the year before. The tourism boom has had some consequences for the country's residents, The New York Times reported in December 2016.

    The surge in visitors has led to a food shortage, and basic food items have become completely unaffordable for locals. Local hotels and restaurants are buying up supplies in bulk for guests, pushing up prices and leaving limited amounts for locals.

    The situation has been acknowledged by the Cuban government, who put caps on prices to make them more affordable for residents. This has only encouraged sellers to put products on the black market, according to The New York Times.

    Did you know that Albert Einstein could not speak until he was four years old, and could not read until he was seven? His parents and teachers worried about his mental ability.

    Beethoven's music teacher said about him, "As a composer (作曲家) he is hopeless." What if this young boy had believed it?

    When Thomas Edison was a young boy, his teachers said he was so stupid that he could never learn anything. He once said, "I remember I used to never be able to get along at school. I was always at the foot of my class ... My father thought I was stupid, and I almost decided that I was a stupid person." What if young Thomas had believed what they said about him?

    When the sculptor (雕刻家) Auguste Rodin was young, he had difficulty learning to read and write. Today, we may say he had a learning disability. His father said of him, "I have an idiot (白痴) for a son." His uncle agreed. "He's uneducable," he said. What if Rodin had doubted his ability?

    Walt Disney was once fired by a newspaper editor because he was thought to have no "good ideas". Enrico Caruso was told by one music teacher, "You can't sing. You have no voice at all." And an editor told Louisa May Alcott that she was unable to write anything that would have popular appeal.

    What if these people had listened and become discouraged? Where would our world be without the music of Beethoven, the art of Rodin or the ideas of Albert Einstein and Walt Disney? As Oscar Levant once said, "It's not what you are but what you don't become that hurts."

    You have great potential. When you believe in all you can be, rather than all you cannot become, you will find your place on earth.

There are many great museums in South Africa. Here we will know about some of those museums.

The Heart of Cape Town Museum

Cape Town is famous for many amazing firsts, especially the world's first heart transplant (移植). This surgery was under the careful guidance of professor Christiaan Barnard. This museum honors everyone who played a major role in medicine and put South Africa and the .University of Cape Town on an international stage.

Cost: $20 (adults); $12 (children)

The Iziko South African Museum

Founded in 1825, this museum holds more than 1.5 million objects, especially ancient fossils (化 石) and stone tools made by people living in South Africa millions of years ago. It also clearly presents the appearance of ancient locals.

Cost: $20 (adults); $15 (children 6-17); $7 (children under 6)

The Warrior Toy Museum

If you think museums are only for a select few, the Warrior Toy Museum in Simon's Town will make you change your idea. Having toys of all shapes, sizes, models and themes, it's a great place for young and old to visit. You can share stories about toys that you played when you were young and create new memories with your children.

Cost: $20 (adults); $10 (children 8-16); $5 (children under 8)

The Van Tilburg Collection

The Van Tilburg Collection is a museum that contains 17th and 18th century furniture, paintings and many other works of art from England, France and Italy. And you will also have a chance to enjoy the largest South African collection of Chinese ceramics (陶器).

Cost: $22 (adults); $10 (children)

Urban Transportation in Canada

Public transportation & Transit passes

All cities and most major towns in Canada have a public transportation system with one or more modes of transportation（bus, subway, train, etc.）. The bus is the most common form of urban transportation in Canada. To use public transportation, you must purchase a ticket or a transit pass. Transit passes allow you unlimited use of public transportation for a specific period（one month or more）. They are usually cheaper than buying many tickets if you plan to use public transportation often.

Transportation for people with disabilities

Public transportation often has features to assist people with disabilities. In many cities and towns, there are also transportation services available specifically for people with limited mobility, such as specially equipped buses. You can find out about these services in the same way you would learn more about other public transportation options.

Etiquette（礼节）on public transportation

When taking public transportation such as a bus or train, it is important to understand the unspoken rules of conduct in the shared space. Here are a few things to note:

Be polite and respectful to others around you. For example, maintain an appropriate noise level when talking or making a phone call.

If you are carrying a back pack or a large shoulder bag in a crowded public transit vehicle, keep it close to you, preferably at your feet to avoid hitting people with it as you walk by.

Avoid pushing or touching others in order to make more room for yourself. Sometimes public transit can become very crowded, but it is important to keep calm and give others appropriate personal space.

Have your proof（证明）of payment accessible in case you are asked to show it.