Why do Stradivarius violins sound so good? 为什么史特拉第瓦里小提琴声音那么美妙?A: What did I tell you?我告诉过你什么来着?B: You’re right Yaoyao.This is a beautiful piece.
Salt vs. Ice 食盐大战冰块Y: Why does salt melt ice?为什么食盐能让冰块融化?D: It lowers the melting and freezing point of water.是因为食盐将水的熔点和冰点降低了。Y: Oh
The Biggest Magnet 最大的磁体A: What’s the biggest magnet ever?究竟什么是最大的磁体?B: Well, that’s a great question. Well, for starters you’d have to mention whoppers like the
Scoop That Poop 我好“无辜”的Actually, dog poop turns out to have a pretty big environmental impact. If you think that two in five households in the U.S. have at least one dog and that abou
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In America, people are faced with more and more decisions every day, whether it’s picking one of thirty-one ice cream flavors, or deciding whether and when to get married. That sounds like a great t
听力原文Florence Hayes is a journalist for the Green Ville Journal, the daily newspaper in town. Specifically she covers crime in the Green Ville area. This responsibility takes her to many differ
Somehow the old male and female stereotypes no longer fit. Men and women in this country haven’t been fulfilling their traditional roles for some time now. And there seem to be fewer and fewer diffe
Everyone is looking for a good investment these days. And with stocks, currencies and companies all crashing, some are finding that taking the trip of a lifetime is actually a smart move right now. Pr
W:YournameSanjayKumaristhatcorrect?M:Yes,madam.W:YouclaimyouaretravelingonascholarshipfromDelhiUniversity.M:That’sright.W:Nowitseemsthatahandgunwasfoundinyourluggage.Doyouadmitthat?M:Yes,but…W：A