UK food delivery service company—Just Eat is changing the delivery game.The company is responsible{#blank#}1{#/blank#} the first food delivery in London using robots.

    Just Eat sent the six-wheeled robot by Starship Technologies to Turkish restaurant Taksim Meze{#blank#}2{#/blank#}(pick) up the order.The robot then made{#blank#}3{#/blank#}(it)way to the customer with the food{#blank#}4{#/blank#}(safe) protected from thieves in a locked case.The customers then used a code{#blank#}5{#/blank#}(supply) by Just Eat to unlock the machine's storage case.

    First shown off at Mobile world congress back in February,the robot uses{#blank#}6{#/blank#}variety of cameras,sensors and GPS trackers to find the way along the pavements to its destination.

    Just Eat says the company wants to use the robots more often across London in 2017{#blank#}7{#/blank#}it also plans to keep delivery robots unique to the UK although Starship Technologies is running many test{#blank#}8{#/blank#}(delivery) in other parts of the world.

    While fans of delivery might be skeptical of{#blank#}9{#/blank#}(receive) their orders from machines,we can all enjoy the thought{#blank#}10{#/blank#}we no longer have to tip the delivery person.

    UN Chinese Language Day {#blank#}1{#/blank#} (celebrate) yearly on April 20. This year, Doreen Hynd was among those invitees, who are either experts on the Chinese culture {#blank#}2{#/blank#} have a special skill related to it.

    Hynd astonished all those present while performing Tai Chi, {#blank#}3{#/blank#} Chinese martial (武术的) art form, at an event held by the UN Tai Chi Club. The audience could hardly believe she was a 93-year-old grandma. It was definitely amazing that she could bend her body and raise her leg so {#blank#}4{#/blank#} (easy) and keep herself still standing on one leg.

    Hynd owes (归功于) all this to her continuous practice of Tai Chi.

    Born in Australia in 1925, Hynd began Tai Chi training in her 50s and then moved to the US, {#blank#}5{#/blank#} she later became an instructor herself.

    When {#blank#}6{#/blank#} (ask) about the greatest benefit she gained from Tai Chi, Hynd said, “balance.” Hynd has been teaching people of all ages and different {#blank#}7{#/blank#} (culture) backgrounds how to practice Tai Chi. They have benefited greatly from their association with the Chinese culture. They've developed a balanced state of mind and improved their health after {#blank#}8{#/blank#}（month）of practice. Tai Chi allows these people {#blank#}9{#/blank#}（understand）that, from the perspective（视角）of yin and yang, all things are closely connected with each other. This might be where the attraction of Tai Chi {#blank#}10{#/blank#}（lie）. Hynd enjoys sharing this great gift from China with her students.

    "If you're talking to me in a noisy restaurant and my nerve system is good at locking onto the sound of your voice, I {#blank#}1{#/blank#} understand what you say better."

    The research at Northwestern University shows that {#blank#}2{#/blank#} (play) a musical instrument is good for your brain. And the brain remembers how to "lock onto" the important sounds, {#blank#}3{#/blank#}, our ears may not work as well as we age, and that helps us to hear better.

    A scientist, living in France twenty years ago, {#blank#}4{#/blank#} (write) about what he called the "Mozart Effect". He said that {#blank#}5{#/blank#} could be helpful to the brain when listening to the classical music of Mozart. Some researchers said that Mozart's music would make you much {#blank#}6{#/blank#} (smart), or even have some health disorders {#blank#}7{#/blank#} (cure). Others said that there was nothing special about Mozart's music. Any kind of high energy music would work. So if the cost of a musical instrument or music lessons is too costly, can we get {#blank#}8{#/blank#} same brain experience just by listening?

    Usually people have teachers, or they can teach themselves music. {#blank#}9{#/blank#}, the point is that they're actively playing a musical instrument and engaging in making music instead {#blank#}10{#/blank#} listening to music passively.

    Looking out of the window of his Ford truck, Bob Fitzgerald sees large, undesirable plants growing in the fields.{#blank#}1{#/blank#} (visitor) to his neighborhood in Princess Anne, Maryland {#blank#}2{#/blank#}(main) see dying forests and empty farmland.

    Fitzgerald says the land{#blank#}3{#/blank#}(be) in his family for over 3 centuries. "I'd say in the next 20 years. You're going to lose{#blank#}4{#/blank#}very high percentage of that land."

    The land around the Chesapeake Bay has been sinking for hundreds of years. But climate change is making things{#blank#}5{#/blank#}(bad). As sea level rises, salt water is entering rivers and other waterways. As a result, the ground is becoming too salty for crops{#blank#}6{#/blank#}(grow) on.

    Maryland's Eastern Shore is home to some of the oldest farms in North America.

    Fitzgerald says he has seen big changes during his life.

    "You just can't believe{#blank#}7{#/blank#}it's been taking things over in the last 15 or 20 years. I can show you land around here that people raised tomatoes on when I was a little boy. And now it's gone."

    Around the world, scientists warn that coastal farms are under{#blank#}8{#/blank#}(threaten) from rising seas and salt water. A World Bank report estimates rice production in coastal areas of Bangladesh may fall{#blank#}9{#/blank#}15 percent by the year 2050. Another study found hundreds of millions of people will{#blank#}10{#/blank#}(force) to move inland because of rising waters.