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本文根据实验事实,阐述了烷基的负诱导效应.In this paper, negative induction effect of alkyl is discussed base on the experiment facts.季铵盐中烷基的转移具有较好的选择性,其优先顺序为:苄基>伯烷基>仲烷基.Excellent selectivity in alkyl transfer was noted in the sequence of Ph...
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evert的一般过去时为：everted...
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n.欢闹，狂欢，无节制的狂热行为vi.狂欢，狂饮...
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She's a bit of a coquette.她有点儿轻佻....
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“恶人”的拼音为：è rén...
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heighten的第三人称单数（三单）为：heightens...
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aparejo的复数形式为：aparejos...
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“退出”的英语可以翻译为：withdraw from，bow out，secede，quit，drop out ...
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Heine: Yes. Which makes the performance even more satisfying. They believed in their own abilities.海涅: 是的.这也使他们的表现更令人满意了. 他们相信自己的实力.the need for a personally satisfying set of beliefs需要一套令自己满意的信念Working with them was our...
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acidophile的音标：acidophile的英式发音音标为：['æsɪdəʊfɪl]acidophile的美式发音音标为：['æsɪdoʊˌfɪl]...
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“波特”的拼音为：bō tè...
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“钳压术”的英语可以翻译为：forcipressure ...
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mesocercaria的音标：mesocercaria的英式发音音标为：[mesɒsə'keərɪə]mesocercaria的美式发音音标为：[mesɒsə'keərɪr]...
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adj.贫穷的，贫乏的，令人怜悯的，可怜的，匮乏的，低劣的n.the poor 贫困者，穷人...