新新单词chugger
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科学60秒:足球运动员的"隐形杀手"
On February 17 former Chicago Bears football player Dave Duerson killed himself with a gun shot to the chest. Doctors later found that Duerson had a condition in common with more than 20 other ...
科学60秒:"偷看"的代价
If you want to guess how many jelly beans are in a jar, you should ask your friends. Then average their answers. Because a group guess is often more accurate than that of any one individual. Just
美文:星星是怎么样的?
星星What Are Stars Like? Have you ever wondered about the stars? In some ways stars are like people. They are born. They grow old. And they die. A star is born from dust and gas. Slowly th...
四亿年前的“美人鱼”
Fingers are pretty nifty. They let you to grab a latte, type on a keyboard, even pull up your pants. But did you ever wonder: where do fingers come from? In the 1990s, scientists gave this proble...