启动子减弱突变体

美国口语骂人篇精华

1. Nerd/geek/dork/dweeb/gweeb 呆子. 这些字都代表一个人因为太专注某件事而看起来不太正常, 而并非不聪明的呆, 如书呆子, 计算机怪胎等, 这几个字可以交换使用. 其中 nerd , geek 和 dork 比其它二个来

发表于:2018-12-17 / 阅读(50) / 评论(0)

今日美国口语

SSS 2011-01-27

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Generations of American children have been told, Eat your broccoli! And for decades, researchers have known that broccoli and related vegetables like cauliflower and water

发表于:2018-12-24 / 阅读(56) / 评论(0)

Scientific American(一)月

美联社新闻一分钟 2006-07-25

1. Secretary of State Condoleezza Rice is in Jerusalem on a high-stakes diplomatic mission. Her first stop was Beirut where leaders were disappointed that her trip did not bring about an Israeli-Hezbo

发表于:2019-01-08 / 阅读(103) / 评论(0)

美联社新闻一分钟2006

Bird flu appears returning: UN

EIJING, Aug. 30 (Xinhuanet) -- The United Nations is warning authorities to be on high alert of bird flu as the virus appears to be returning. The UN Food and Agriculture Organization said in a statement Monday a mutant strain is spreading across par

发表于:2019-02-08 / 阅读(84) / 评论(0)

英语新闻

TED演讲:昭示长寿的实验(1)

Have you ever wanted to stay young a little longer 大家有没有想过要年轻再久一点 and put off aging? 延缓衰老呢？ This is a dream of the ages. 这是很久以来的梦想了 But scientists have for a long time 不过科学家以前一

发表于:2019-02-14 / 阅读(55) / 评论(0)

TED演讲科学篇

留美老师带你每日说英文第779期:如何表现自我

台湾籍旅美老师今天交给我们的句子是： By an ultimate irony, these self-promoters aren't trying to alienate us. They are laboring under the touching but seriously misguided impression that we will like them more for their success. 最讽

发表于:2019-03-05 / 阅读(71) / 评论(0)

留美老师带你每日说英文

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学英语单词

aircraft nuclear propulsion (anp)

anti-nuclear factor

arrester with shunt gaps