4000 CAE Vocabulary List

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a. 极度自我中心,自以为是,逞能 excessively self-centered; self-important

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n. 电子 an elementary particle with the negative charge

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a. 胚胎的,未开发的 in the early stage of development; of an organism before birth; related to embryo

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v. 开脱,免罪 acquit; free from blame; discharge from duty

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a. 延长的,扩大的 great in range or scope

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n. 消失,灭绝 death of all its remaining members

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v. 领会,调查,测量 measure the depth; come to understand

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v. 使溃烂,化脓 undergo decay; infect, inflame, or corrupt;

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v. 萎缩,衰退 become less intense; sink, or settle from pressure

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v. 畏首畏尾,退缩,犹豫 draw back, as with fear or pain