音标：[ˌæsitiˈleits] ；

v. 加乙酰基于( acetylate的第三人称单数 )

v receive substitution of an acetyl group
v introduce an acetyl group into (a chemical compound)

疯狂英语口语绝招 Hesitation

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零距离李阳疯狂英语口语

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大千世界

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Es asi mi amor

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A Lesson In Life 人生物语

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英语单词大师-Word Master

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歌词如下： Who stole the cookies from the cookie jar? Cindy stole the cookies from the cookie jar. Who me? Yes, you. Not me.Then who? Lindy stole the cookies from the cookie jar. Who me? Yes, you. Not me.Then who? Sally stole the cookies from th

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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

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好听的英文歌曲

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By Greg Flakus Prescott, Arizona 03 November 2006 watch Forest Fire Prevention In the western United States this year nearly four million hectares of land have been scorched by fire, in the worst wildfire season on record. Twenty-one firefighters ha

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Aesop at Play

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趣味英语

医学病症词典一

Abadie's Sign Chinese阿巴迪征(跟腱受压无感觉，见于脊髓痨) Abaptiston Chinese安全开颅圆锯 abarognosis Chinese压觉缺失 abasia astasia Chinese立行不能 abasia Chinese步行不能 abdominal reflex Chinese腹壁反射 abduction Chinese外展 abiotrophy Chinese生活力

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By Jim Malone Washington 20 February 2008 Democratic presidential contenders Barack Obama and Hillary Clinton are headed for a showdown March 4 in primaries in Texas and Ohio. Those primaries could go a long way toward deciding who will be the Democr

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VOA常速英语2008年（二月）

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学英语单词

alias transformation

antiparade

arranged total lose

atomic absorption spectrometry

avalanche characteristic

be radiant with joy

bone-conduction microphone