单词：quick freezing tank
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By Gary Garriott Broadcast: August 25, 2003 This is Steve Ember with the VOA Special English Development Report. Freezing can keep food fresh and safe to eat. Freezing lowers the food temperature belo
VOA2003（下）-发展与科学
Kill them all. You know I did and that was tough to live with, er, for a long time. I was angry, because the, the, the way we prosecuted that particular mission--you know, send the Tank Company down this crowded road that was already covered in burni
国家地理2007年
It is often said that cats have nine lives, that they are lucky enough to escape from danger again and again. Here is a science fiction tale about how one such lucky escape by a cat led to a discovery that was able to change the course of people's l
英语散文阅读
ARI SHAPIRO, HOST: We have a winner. For the last three years, thousands of aspiring musicians have submitted videos to NPR Music's Tiny Desk Contest for a chance to come to Washington, D.C., and perform at NPR's home office behind a desk. Here is wh
2017年NPR美国国家公共电台3月
今天我们要学的词是 think tank. Think tank 智库。比如，The Heritage Foundation is a well-known conservative think tank. 传统基金会是一个著名的保守派智库。A think tank in Beijing recommended China adjust its one-child po
英语单词荟萃
当年是铁路把美国的大西洋海岸和太平洋沿岸连接了起来。今天要谈的习惯用语就是从那个年代流传至今的。今天学的习惯用语也是诞生在一百多年前。当时大多数美国人还过着乡居生活，但
美国俚语