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Electronic equipment quickly becomes obsolescent.电子设备淘汰得很快.This word is now obsolescent.这个字现在已废弃不用了.This type of computer is obsolescent.这类计算机是快要过时的....
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modulated的音标：modulated的英式发音音标为：['mɒdjʊleɪtɪd]modulated的美式发音音标为：['mɒdjʊleɪtɪd]...
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It allows nicotine to diffuse slowly and steadily into the bloodstream.它能使尼古丁平稳缓慢地渗透到血液里。They injected the drug directly into her bloodstream.他们把药物直接注射到她的血液里。Red blood cells transport oxygen through the bloodstream.红细胞通过...
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doctrinarian的音标：doctrinarian的英式发音音标为：[ˌdɒktrɪ'neərɪən]doctrinarian的美式发音音标为：[ˌdɒktrɪ'nerɪrn]...
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空肠切开术...
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boatrace的音标：boatrace的英式发音音标为：[bəʊt'reɪs]boatrace的美式发音音标为：[boʊt'reɪs]...
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Growing straight , so that the micropyle is at the end opposite the stalk. Used an ovule.直生的直立生长以至珠孔在茎的另一端的. 用于形容胚珠....
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addressee的音标：addressee的英式发音音标为：[ˌædre'si:]addressee的美式发音音标为：[ˌædrɛ'si, əˌdrɛs'i]...
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New World frogs; in some classifications essentially coextensive with the family Bufonidae.美洲蛙; 在某些分类中,基本上与蟾蜍科同延.the croaking of frogs蛙鸣Frogs produce slime to keep their skin moist.青蛙分泌出黏液来使皮肤保持湿润。This type of tongue , a...
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n.密码使用法，密码系统，密码术...
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n.变铀钍石...
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那些地区通过完善的公路系统相互连接。The regions are interconnected by an excellent highway system.有完善的体育娱乐设施。There are excellent facilities for sport and recreation.他们正在研制完善的新颜料配方.They are working on the perfection of their new paint form...
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“出生率”的拼音为：chū shēng lǜ...
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船里的男孩买了护城河里的浮筒.Boys in the boat bought buoys in the moat.我们把船系在那个红色的大浮筒上.We tie up at that large red buoy.你船可在5号航道浮筒上引航员.You can take pilot a No.5 Fairway Buoy....