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Cerumen, it's a lovely word a specially considering that's called ear wax. And we are not the only species that produce this stuff, some whales build up waxes along with lipids and carotene protein into what's called earplugs. And researchers now kno
Scientific American(九)月
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
Scientific American(九)月
Big Apple Weighs Fees on Single-use Plastic Bags NEW YORK The world consumes hundreds of billions of single-use plastic bags each year. Environmental activists say they are difficult to recycle, wasteful and damage the biosphere. They want to ban pla
VOA标准英语2014年(四月)
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
英语单词荟萃
今天我们还要学几个美国总统大选中常用的习惯用语。我们曾经说过，英语词汇很多都来自体育运动。今天要学的第一个习惯用语就来自号称皇家运动的赛马: down to the wire。这里的wire指赛马跑
美国习惯用语
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
英语每日一词