disavows
v.
不承认，抵赖，拒绝对…承担责任( disavow的第三人称单数 );
例句:
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He disavows the existence of any organized conspiracy.
来自MSN
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Paul disavows the newsletters, saying he did not write them.
来自VOA
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She disavows any part ( ie says she was not involved ) in the plot.
她否认参与了这一密谋.
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It also references old positions that Kerry now disavows.
来自CNN