Splendid! He kept his telescopic cameras carefully aimedglued to their moving objective; 精彩片他小心地调着望远摄影机的镜头,盯紧了那移动着的对象。 clapped on a higher power to get a close-up of the frantic and distorted

发表于:2018-12-07 / 阅读(57) / 评论(0) 分类 美丽新世界

BBC News with Julia Candler. A senior member of North Koreas government has warned that his country would react with a pre-emptive nuclear strike if it saw signs that the US was preparing to launch an attack. Speaking to the BBC, the Vice Foreign Min

发表于:2018-12-20 / 阅读(47) / 评论(0) 分类 中英双语新闻

PCRthe polymerase chain reactionis a crucial tool. The DNA amplification technique is used in genome sequencing, forensics and the diagnosis of various diseases. To give researchers more genetic material to work with, a PCR instrument repeatedly heat

发表于:2019-01-08 / 阅读(49) / 评论(0) 分类 Scientific American(十)月

This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful but adds CO2 to the atmosphere. Rec

发表于:2019-01-08 / 阅读(70) / 评论(0) 分类 Scientific American(三)月

N-Dubz是一支来自伦敦的嘻哈一族。他们首张专辑08年发行一举爬到UK Albums Chart第十一名位置,并且有已拥有3首进入UK Singles ChartTop 40单曲,实力不容小视。09年11月16日组合整装待发推出出道以来

发表于:2019-01-10 / 阅读(93) / 评论(0) 分类 天籁音乐

Because of course, the ear is, I mean, subject to all sorts of things. 这当然是因为,我是说,耳朵受制于很多因素。 The room we happen to be in, the amplification, the quality of the instrument,the type of sticks...etc., etc. 我们现

发表于:2019-01-18 / 阅读(39) / 评论(0) 分类 TED演讲国际问题篇