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adj.零值的，等于零的，（协议） 无法律效力，失效的...
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“球形”的拼音为：qiú xíng...
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n.半乳糖激酶...
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n.神枪手（marksman的复数形式）...
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They were principally used to catalyze aldol, allylation, Diels - Alder, ene and Friedel - Crafts reactions.它们主要被用来催化Aldol, 烯丙基化, Diels-Alder, Ene和 Friedel -Crafts等反应....
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offhand的音标：offhand的英式发音音标为：[ˌɒf'hænd]offhand的美式发音音标为：[ˌɔf'hænd]...
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herbstore的音标：herbstore的英式发音音标为：[hɜ:bz'tər]herbstore的美式发音音标为：[hɜbz'tər]...
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Getting your feet wet disposes you to catching cold.你将脚弄湿易患感冒.Man proposes, God disposes.谋事在天，成事在人。Hardship disposes man to meet adversity.艰苦的生活使人能应付逆境.a drug that disposes the patient towards sleep使病人想睡觉的药...
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n.水杨酰偶氮碘胺吡啶...
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n.诸君，诸位先生，先生，绅士( monsieur的名词复数 )...
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chronicles的音标：...
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outspoken的音标：outspoken的英式发音音标为：[aʊt'spəʊkən]outspoken的美式发音音标为：[aʊt'spoʊkən]...
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“强人”的拼音为：qiáng rén ...
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Why do you wear that ring on first finger?你怎么把那戒指戴在食指上?In Spain, snapping the thumb and first finger a few times is a form of applause.在西班牙, 将拇指和食指放在一起打响指是欢呼的一种形式....