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vt.& vi.保证，断言，承认...
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avouch的现在进行时为：avouching...
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We can avouch for the quality.我们保证质量.I am willing to employ your friend if you will avouch his integrity.如果你能保证你的朋友是个诚实的人,那么我很乐意聘用他.I avouch for that girl; she has promised to be good.我愿为那女孩担保; 她已答应要改好....
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avouch的第三人称单数（三单）为：avouched...
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avouch的一般过去时为：avouched...
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avouch的音标：avouch的英式发音音标为：[ə'vaʊtʃ]avouch的美式发音音标为：[ə'vaʊtʃ]...