音标：[,paiərә?'seljjlәjs,-lәjz] ；

[机] 焦纤维

n. nitrocellulose containing less nitrogen than guncotton; used in making smokeless powder

【英语时差8,16】蘑菇也能变为柴油？

Don: Time to go again to the A Moment of Science mailbag. Yal: A listener writes: Dear A Moment of Science, Scientists know that one day we'll run out of oil and other natural sources of energy. Beyond solar power and wind power and ethanol, what are

发表于:2018-12-27 / 阅读(447) / 评论(0)

英语时差8，16

SSS 2008-05-08

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. It sounds like something out of a bad science fiction novel. During World War II, a fungus called Tricoderma reesei ate its way through US military unifo

发表于:2019-01-08 / 阅读(483) / 评论(0)

Scientific American(五)月

VOA标准英语2011--Automakers Turn Agro-Waste into Car Part

Scientists in Brazil are turning fruit fibers into car parts. At a recent meeting of the American Chemical Society, the researchers described their work in making the next generation of automotive parts made from natural fibers from bananas, pineappl

发表于:2019-01-09 / 阅读(466) / 评论(0)

VOA标准英语2011年(四月)

VOA慢速英语2014 烟头转变成电池

Turning Cigarette Butts to Batteries 烟头转变成电池 If you see a person carelessly throw a cigarette to the ground, what are you likely to think? That depends. If you hate people throwing things on the ground, you might think, That person shou

发表于:2019-01-12 / 阅读(466) / 评论(0)

2014年VOA慢速英语(九)月

留美老师带你每日说英文第338期:减肥要靠吃对食物

台湾籍旅美老师今天交给我们的句子是： It's not rocket science: Focus on lean protein, healthy fats and non-processed, unrefined carbohydrates such as vegetables, beans, whole grains and fruit. 这不难懂：多摄取低脂肉类、健

发表于:2019-02-22 / 阅读(369) / 评论(0)

留美老师带你每日说英文

英语PK台第452期:宝宝内心的小恐惧

Dialogue 1 Mark: Hey, Jingjing. You wanna come bungee jumping with me and my friends? We're heading out this afternoon. It's gonna be so much fun! 马克：嘿，京晶。你想加入我和我的朋友们去蹦极吗？我们今天下午出发，肯定

发表于:2019-03-06 / 阅读(510) / 评论(0)

英语PK台

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学英语单词

adrenogenital syndrome

afy

alexander archipelagos

boiling process(for soap manufacture)

Bulbophyllum violaceolabellum

catched ingot