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“Birds” and “airports” are two words that, paired together, don't normally paint the most harmonious picture. So it really raises some eyebrows when China announces plans to build an airport that's for birds.

Described as the world's first-ever bird airport, the proposed Lingang Bird Sanctuary(保护区) in the northern coastal city of Tianjin is，of course，not an actual airport. Rather, it's a wetland preserve specifically designed to accommodate hundreds — even thousands — of daily takeoffs and landings by birds traveling along the East Asian-Australasian Flyway. Over 50 species of migratory (迁徙的）water birds, some endangered, will stop and feed at the protected sanctuary before continuing their long journey along the flyway.

Located on a former landfill site, the 61-hectare (150-acre) airport is also open to human travelers. (Half a million visitors are expected annually.) However, instead of duty-free shopping, the main attraction for non-egg-laying creatures at Tianjin's newest airport will be a green-roofed education and research center, a series of raised “observation platforms” and a network of scenic walking and cycling paths and trails totaling over 4 miles.

The proposed Bird Airport will be a globally significant sanctuary for endangered migratory bird species, while providing new green lungs for the city of Tianjin,” Adrian McGregor of Australian landscape architecture firm McGregor Coxall explained of .the design. Frequently blanketed in smog so thick that it has shut down real airports, Tianjin is a city — China's fourth most populous — that would certainly benefit from a new pair of healthy green lungs.

    At home, ordering food from a menu is a normal, everyday routine. I don't even give it a second thought. In China, it's a whole other story! Here, ordering is a fun game of trial and error, and the adventure begins before the food is even served!

    Many restaurants in central Beijing advertise “English language menus”, but the translations can just add to the confusion. Although accompanying pictures can be a helpful relief, the translations often make the whole experience even more amusing. During my first few weeks in China I tried some delicious dishes with strange names. As an experiment, my friends and I would order things like “students addicted to chicken gristle (软骨)” and “red burned lion head”. It was always fun to see what landed on our table. Eventually we learned that “lion head” was actually pork, and “students” are “addicted” to diced (切碎的) chicken with green pepper.

    Recently, I came across a busy restaurant down a narrow side street in a Beijing hutong. It was lunchtime and the small room was packed with people sitting on small stools (凳子) eating noodles. I was hungry and cold, and the steaming bowls looked irresistible! I sat myself down and called out for a “caidan!” In response, the waitress pointed to a wall at the back of the restaurant. The wall was full of Chinese characters describing numerous dishes. There was only one sentence in English: “crossing over the bridge noodles”.

    I had never heard of the dish and had no idea what it would taste like. I took a gamble and ordered one bowl of “crossing over the bridge noodles”. A few minutes later the waitress carried over a heavy bowl full of broth (肉汤) and I quickly dug in. It was the best bowl of noodles I had ever tasted! I have been back again and again and each time I point at the one English sentence – “crossing over the bridge noodles”. I always enter a restaurant in China feeling excited and a little nervous. Who knows what the next ordering adventure will reveal?

    Compassion（同情）is a desire within us to help others. With effort, we can translate compassion into action. An experience last weekend showed me this is true. I work part-time in supermarket across from a building for the elderly. These old people are our main customers, and it's not hard to lose patience over their slowness. But last Sunday, one aged gentleman appeared to teach me a valuable lesson. This untidy man walked up to my register（收款机）with a box of biscuits. He said he was out of cash, had just moved into his room, and had nothing in his cupboards. He asked if we could let him have the food on trust. He promised to repay me the next day.

    I couldn't help staring at him. I wondered what kind of person he had been ten or twenty years before, and what he would be like if fortune had gone his way. I had a hurt in my heart for this kind of human soul, all alone in the world. I told him that I was sorry, but store rules didn't allow me to do so. I felt stupid and unkind saying this, but I valued my job.

    Just then, another man, standing behind the first, spoke up. If anything, he looked more pitiable, “Charge it to me,” was all he said.

    What I had been feeling was pity. Pity is soft and safe and easy. Compassion, on the other hand, is caring in action. I thanked the second man but told him that was not allowed either. Then I reached into my pocket and paid for the biscuits myself. I reached into my pocket because these two men had reached into my heart and taught me compassion.

    The saying, "Don't judge a book by its cover, means you should not guess the worth or value of something based on how it looks. That message was clear at a recent event called the Human Library Project. The event took place at the Northern Virginia, or NoVa, Community College, outside of Washington. D. C.

    The Human Library began 19 years ago in Denmark. It grew from a youth organization called "Stop the Violence". Today, it is a worldwide movement. At the NoVa event, students got the chance to learn from a person—a "human book"—instead of a library book.

    Patricia Cooper organized the event. She said that human books celebrate variety by telling their life stories in an easy-going setting. "The goal of the human library is to talk to people in your community who you may otherwise not speak to because you have your own prejudices (偏见) and hopefully to break down some of these barriers."

    This is the third year that NoVa has held such an event. The collection of human books included a civil rights activist, a scientist from the American space agency NASA, and an opera singer.

    Artist Brian Dailey was a human book. He spoke about his travels to 113 countries in seven years. Dailey said that, during his travels, he asked people whom he took pictures of for a one-word answer to a series of other words—such as love, freedom and war. He discovered that people in different countries often had very different reactions to the same word.

    When Dailey asked people in Africa about the word "war" they used words like justice, liberation and peace. When he asked the same question to people in Syrian refugee camps, the answer was: "tears, hunger, fear, destruction".

    Bike sharing have become popular words in cities from Cape Town to Shanghai to Melbourne. Planners, politicians and media keep showing off their benefits: reducing pollution, congestion, travel costs and oil dependence, while improving public health. Bike sharing also helps make cities appear modern, dynamic and worldwide--qualities much sought after by the creative class.

    But what makes for a successful public bike-sharing program? This is an important question because installing one requires significant public and private investment and adjustment to the built environment.

    While many programs have been launched among much praise, often their popularity has soon declined. Many end up operating at a financial loss and depend on other profitable enterprises to cross-subsidize (交叉补贴) them. Some have resulted in thrown-away bikes becoming an eyesore.

    Understanding which factors enhance or stop public bike sharing is critical in helping cities decide whether such a program is workable, before considering what design and sitting will work best.

    Drawing on current knowledge, we discuss the importance of the local landscape, climate, cycling infrastructure (基础设施) and land use. We also touch on other factors, such as the legal environment and the characteristics of the bike-sharing program itself.

    Take natural environment for example. Two natural environment factors are known to affect participation: hilliness and weather. Hilliness discourages balanced bike-sharing use, as users avoid returning bicycles to stations on hilltops. Those stations end up being empty, while stations on flat areas are often full, so users cannot find a station to return their bikes.

    As for weather, ideal temperature ranges vary by the climate zone. Case studies show warm and dry weather encourages public bike-sharing use. Rain and strong wind reduce the frequency of trips. However, some approaches, such as providing sheltered, shaded, or even heated or cooled cycling infrastructure, could prove useful.