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SSS 2011-09-27

This is Scientific American's 60-Second Science. I'm Sophie Bushwick. Got a minute? The shortest distance between two points may be a straight line, but try telling that to electrons: when current flows down a wire, these particles zig and zag, movin

发表于:2018-12-24 / 阅读(71) / 评论(0)

Scientific American(九)月

VOA慢速英语2013 Words and Their Stories: Grapevine

Words and Their Stories: Grapevine Now, the VOA Special English program WORDS AND THEIR STORIES. Some of the most exciting information comes by way of the grapevine. That is so because reports received through the grapevine are supposed to be secret.

发表于:2019-01-12 / 阅读(33) / 评论(0)

2013年VOA慢速英语(五)月

VOA慢速英语2013 词汇典故：小道消息

Words and Their Stories: The Grapevine 词汇典故：小道消息 Now, the VOA Special English program WORDS AND THEIR STORIES. 现在是美国之音慢速英语词汇典故节目。 Some of the most exciting information comes by way of the grapevin

发表于:2019-01-12 / 阅读(38) / 评论(0)

2013年VOA慢速英语(三)月

VOA慢速英语2011--Words and Their Stories: Grapevine

Words and Their Stories: Grapevine 词汇典故：小道消息 Now, the VOA Special English program WORDS AND THEIR STORIES. 现在是美国之音慢速英语词汇典故节目。 Some of the most exciting information comes by way of the grapevine . 一

发表于:2019-01-12 / 阅读(46) / 评论(0)

2011年VOA慢速英语(十一)月

VOA慢速英语2014 Heard It Through the Grapevine 词汇典故：小道消息

Heard It Through the Grapevine 词汇典故：小道消息 Now, the VOA Special English program WORDS AND THEIR STORIES. 现在是美国之音慢速英语词汇典故节目。 Some of the most exciting information comes by way of the grapevine. 一些最

发表于:2019-01-12 / 阅读(33) / 评论(0)

2014年VOA慢速英语(三)月

每日一词【586】down to the wire：直到最后一刻

今天我们要学的词是down to the wire。 Down to the wire, 是直到最后一刻的意思。美国总统大选已经进入倒数计时，星期二一大早，全美各地的投票站就要开门了。 Presidential candidates McCain and Obama ar

发表于:2019-02-04 / 阅读(81) / 评论(0)

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amdro

anadenanthera colubrinas

analyzer-indicator

bearing series

bucket cutting teeth

Camellia connatistyla