产物母体,先质,前身物质

precursor substance的用法和样例：

例句

Ergot contains the precursor chemical to LSD, so outbreaks of St.Anthony's Fire were often accompanied by terrifying mass delusions.麦角菌包含麦角酸二乙基醯胺化学体先质，因此圣安东尼之焰的爆发常伴随可怕的幻觉。

CNN 2010-03-08

Dana joins us now live from Washington. So, Dana, you know, what is your take here? Is this typical political theater of someone's who's not going to be re-elected? Or is it a true sign of growing rage over the fact that we're spending money that we

发表于:2018-12-02 / 阅读(107) / 评论(0)

CNN2010年(三)月

闭着眼睛飘单词四级词汇60

[0:0]strip structure studio脱光衣服，剥去结构，构造画室，摄影棚 [0:31.9039]stuff style submerge submit原料，材料风格，文体，样式潜入水中，淹没屈服，听从 [1:16.6271]subsequent substance substantial substitute随后的，后来的物质，实质，要旨可观

发表于:2018-12-05 / 阅读(123) / 评论(0)

闭着眼睛飘单词四级词汇

英语灵异故事-Roofer 01 房顶工人 01

[00:14.15]Roofer [00:19.31]房顶工人 [00:31.61]I worked in the basement of a Caltech campus building [00:35.17]that had been periodically haunted [00:37.88]by the specter of the upper half of a roofer [00:41.07]who had fallen from the six story roof [

发表于:2018-12-11 / 阅读(74) / 评论(0)

英语灵异故事

[单词解析速记].JV538.(Precursor.and.Prosaic)

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

发表于:2018-12-30 / 阅读(121) / 评论(0)

单词解析速记

英伦广角中年糖尿病预防有助于防止大脑老化

Want to ward off memory issues and other cognitive problems as you age? Looks like low blood glucose levels are an important factor. New research finds that individuals diagnosed with type 2 diabetes in middle age had greater cognitive impairment in

发表于:2019-01-02 / 阅读(66) / 评论(0)

英伦广角

不为人们重视的光污染

61 不为人们重视的光污染 ENVIRONMENT REPORT - August 31, 2001: Light PollutionBy Mario Ritter （Start at 1'01

发表于:2019-01-02 / 阅读(130) / 评论(0)

自然探索

SSS 2008-11-13

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Weve heard that a mothers weight during pregnancy can influence the weight of her offspring. Now a study of rats shows that the fat content in a moms d

发表于:2019-01-08 / 阅读(104) / 评论(0)

Scientific American(十一)月

VOA慢速英语2014 What's the Matter?

What's the Matter? Now, the VOA Learning English program, Words and Their Stories. The English language has a number of hard-working words. People use these words in many different ways and in many different expressions. One such example is the word

发表于:2019-01-12 / 阅读(81) / 评论(0)

2014年VOA慢速英语(十一)月

经济学人72:迷幻药之考验今非昔比

Science and Technology LSD Acid tests 科技麦角酸二乙基酰胺迷幻药之考验 Research into hallucinogenic drugs begins to shake off decades of taboo 迷幻药物的研究开始摆脱几十年来的禁忌 THE psychedelic era of the 1960s i

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经济学人科技系列

生活大爆炸第二季第九集_2

-Stephanie：Does he always do this? 他经常这么干吗？ -Leonard：Sometimes he brings a toy xylophone. toy：玩具 xylophone：木琴有时他还会自带玩具木琴。 I am really sorry about this. 我对这一切很抱歉。 -Stephanie：

发表于:2019-01-28 / 阅读(198) / 评论(0)

生活大爆炸第二季

Cheese from Camels

> 79 如何提取骆驼奶制作乳酪 DATE=8-7-01 TITLE=AGRICULTURE REPORT - Cheese from Camels BYLINE=George Grow （Start at 59

发表于:2019-01-30 / 阅读(131) / 评论(0)

科技之光

Testing of Drugs

81 一年轻妇女死于药品试验 DATE=8-11-01 TITLE=IN THE NEWS #493 - Testing of Drugs BYLINE=Nancy Steinbach （Start at 1'05

发表于:2019-01-30 / 阅读(110) / 评论(0)

科技之光

New Broccoli Study

21 只有部分椰菜可以预防癌症 DATE=3-15-01 TITLE=SCIENCE REPORT - New Broccoli Study BYLINE=George Grow (Start at 58

发表于:2019-01-30 / 阅读(86) / 评论(0)

科技之光

a successful vote precursor to US-Sudan relationship

KHARTOUM, Jan. 5 (Xinhua) -- Chairman of the U.S. Senate Foreign Relations Committee John Kerry on Wednesday said that a successful referendum(公民投票权) in south Sudan would be the precursor（先驱,前导） to a stronger new relationship be

发表于:2019-02-05 / 阅读(78) / 评论(0)

英语新闻

我们何时开始做梦

发表于:2019-02-09 / 阅读(86) / 评论(0)

实用英语

PSV end year as Dutch winter champions

THE HAGUE, Dec. 23 (Xinhua) -- PSV Eindhoven ended the year 2012 as Dutch Eredivisie winter champions for the 19th time in history, with FC Twente finishing the year on goal difference as the second placed team. PSV had no difficulties with NAC Breda

发表于:2019-02-09 / 阅读(89) / 评论(0)

英语新闻

"Lincoln," others receive PGA nominations

LOS ANGELES, Jan. 2 (Xinhua) -- The producers of the award season's frontrunners including Lincoln, Zero Dark Thirty and Les Miserables have been chosen as possible contenders for the top honor bestowed by the Producers Guild of America (PGA), the gr

发表于:2019-02-11 / 阅读(341) / 评论(0)

英语新闻

Directors Guild of America unveils nominees

LOS ANGELES, Jan. 8 (Xinhua) -- The Directors Guild of America (DG) on Tuesday handed out nominations to elite directors including Steven Spielberg and Ang Lee who are viewed as front- running contenders for best helmer of 2012. Ben Affleck earned a

发表于:2019-02-13 / 阅读(89) / 评论(0)

英语新闻

经济学人:爱尔兰能源泥炭向风能过渡(1)

Europe 欧洲 Energy in Ireland: Bog down, wind up 爱尔兰能源：停顿，关闭 Ireland is ditching peat for energy from wind. 爱尔兰正从泥炭能源转向风能。 Peat has a lot to recommend it. 这个岛国的目标是成为电力净出口

发表于:2019-02-17 / 阅读(88) / 评论(0)

经济学人综合

万物简史第382期:浩瀚的海洋(1)

18 The Bounding Main 第十八章浩瀚的海洋 Imagine trying to live in a world dominated by dihydrogen oxide, 请你想像一下，你能不能生活在一个由一氧化二氢主宰的世界里。 a compound that has no taste or smell and is so

发表于:2019-02-25 / 阅读(144) / 评论(0)

万物简史

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学英语单词

a holy terror

acupuncture-point curer

alto molocue

anholonomic component

anterior bony ampulla