防止食物变质的妙方 (1)
Mohammed Bah Abba
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科学60秒:"头大"的城里小鸟
Cities have a lot to offer: theater, music, restaurants, birds. Yes, birds. But city birds are not like other birds. Because big cities are by birds with big brains. That’s according to a study...
科学60秒:年老易摔倒怎么办?
The elderly suffer from ___1___. A third of people over 65 fall at least once a year. Half of those fall more frequently. Exercise can help, especially when they exercise to this . That’s right,...
CNN 新闻100篇 News Item 63
CNNHow do you choose a college? Some of you might choose a school based on the courses that it offers. Some might choose one that's close to home, or really far away. But how about for a money-ba...
珍贵的海星
故事Treasure Starfish Once upon a time there was a wise man who used to go to the ocean to do his writing. He had a habit of walking on the beach before he began his work. One...