Accord of Sorts in Copenhagen Working late into the night, negotiators from the world's nations agreed in principle to attempt to limit the global postindustrial temperature rise to 2 degrees Celsius. Steve Mirsky reports, with Christina Reed in Cope

发表于:2019-01-02 / 阅读(79) / 评论(0) 分类 60秒科学

Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of

发表于:2019-01-11 / 阅读(74) / 评论(0) 分类 英语杂谈

We all have weaknesses and strengths no matter who we are. Sometimes the weaknesses seem to outweigh the strengths and sometimes its the other way around. Some people get sick easily. Some struggle to manage their finances properly. Some people are h

发表于:2019-01-27 / 阅读(56) / 评论(0) 分类 阅读空间

By David Gollust State Department 22 February 2008 The United States Friday called on Turkey to limit the scope of its ground incursion in northern Iraq and bring it to an early conclusion. The operation is apparently the biggest of several recent Tu

发表于:2019-01-31 / 阅读(60) / 评论(0) 分类 VOA常速英语2008年(二月)

今天我们要学的词是age limit。 Age limit, 年龄限制。社交网站脸书网并不是任何人都能注册帐户的。 Facebook enforces an age limit of 13 years or older to register an account, 脸谱网规定,只有满13岁的人才能注

发表于:2019-02-02 / 阅读(53) / 评论(0) 分类 英语单词荟萃

limit 在美国当代英语语料库统计的20000个常用词中,limit作为动词的用法排在第1355位,在4.5亿个单词中出现了28901次; 频率最高的搭配: 名词搭配:limit numberlimit abilitylimit uselimit powerlimit amount

发表于:2019-02-03 / 阅读(281) / 评论(0) 分类 英文语法词汇