大结节嵴

Good evening, my fellow Americans. Tonight I want to talk to you on a subject of deep concern to all Americans and to many people in all parts of the world, the war in Vietnam. I believe that one of the reasons for the deep division about Vietnam is

发表于:2018-12-30 / 阅读(81) / 评论(0) 分类 名人演讲

在TED U 2009的这个简短的演讲中,Jonathan Drori鼓励我们保护生物多样性 -- 从一颗颗种子做起。他提醒我们要保护人类赖以生存的植物,同时他也给大家描述了千年种子库这样一个美好的远景,在

发表于:2019-01-05 / 阅读(85) / 评论(0) 分类 TED公开课:生态谜云

Transcript This is Scientific American's 60-Second Science. I'm Cynthia Graber . This will just take a minute. Some peppers have a mild, fresh flavor. But others burn your lips and leave a lingering, numbing kick. If you enjoy that tingling thrill, y

发表于:2019-01-08 / 阅读(80) / 评论(0) 分类 Scientific American(八)月

The Chinese offshore oil corporation known as CNOOC has abandoned its bid for UNOCAL. This would have been the largest-ever purchase of an American company by a Chinese firm. CNOOC had put forth a bid that was higher than the competing bid from US o

发表于:2019-01-08 / 阅读(149) / 评论(0) 分类 2005年NPR美国国家公共电台

By David McAlary Washington 02 May 2007 U.S. researchers have discovered a gene that promotes longer life in earthworms that eat much less than normal. Humans have similar genes, and VOA's David McAlary reports that, if they work the same way as in t

发表于:2019-02-06 / 阅读(85) / 评论(0) 分类 2007年VOA标准英语(五月)

有车一族在享受车辆带来便利的同时,免不了还要为爱车操心各种事儿。以下这些关于车的英文表达也许你会用得着。 1. I had a puncture when I was driving back from work. 1. 我下班回家的时候车胎扎了。

发表于:2019-02-25 / 阅读(73) / 评论(0) 分类 英语口语