硅铅矿

14 A Rare Fossil Record

14 A Rare Fossil Record The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized. Ichthyosaurs had a

发表于:2018-12-07 / 阅读(198) / 评论(0)

英语范文背诵20篇

五人英语话剧剧本-The Silber Swindle

5人 Actors: Tavern Keepe:(男主角) Young Man Keeper's Wife(女主角) Young Man Old Man Summary: Once upon a time, there was a tavern. Travelers and hunters would exchange silver ingots for copper coins and eat some food there. The tavern keeper a

发表于:2019-01-08 / 阅读(121) / 评论(0)

英文剧本

美国国家公共电台 NPR Say Au Revoir To That Hunk Of Metal In France That Has Defined The Kilogram

DAVID GREENE, HOST: So every time you weigh something, whether it's coffee or bananas - I'm not sure what you're weighing - you might be doing it in pounds - well, whatever you're doing, you're unknowingly relying on a global system of measurement th

发表于:2019-01-17 / 阅读(68) / 评论(0)

2018年NPR美国国家公共电台11月

Uma Gunasilan

BBC Learning English People and Places Sun Hai Nin SIG Sun Hai Nin: Well, hello everybody Im Hai Nin, Im from China and now Im in London. William:And Im William Kremer welcome to People and Places. You just heard a young Chinese Woman, Sun Hai Nin.

发表于:2019-02-03 / 阅读(136) / 评论(0)

人与地方

VOA常速英语2007-German, Russian Leaders Meet to Discuss Ties

By Lisa Bryant Paris 15 October 2007 German and Russian leaders are holding talks in Wiesbaden, Germany, at a time when Moscow and the European Union disagree on several critical issues, including Kosovo and energy. Lisa Bryant has more on the meetin

发表于:2019-02-07 / 阅读(34) / 评论(0)

2007年VOA常速英语（十月）

学个词 Learn a Word-VOA英语教学 2857 laureate

今天我们要学的词是laureate。Laureate名词，意思是得奖者、获奖者。Chinese dissident and Nobel Peace Prize laureate Liu Xiaobo died of liver cancer on medical parole at 61. 中国异议人士、诺贝尔和平奖获得者刘晓波

发表于:2019-02-24 / 阅读(49) / 评论(0)

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学英语单词

Białskopodlaskie, Województwo

bioinformaticist

block iteration method

bottle-top