动词短语
中文翻译：作证反对
同义词：
['testify against', 'give evidence against', 'testify against']
例句：
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1.He was asked to testify against his former employer in a criminal trial.
他被要求在刑事审判中作证反对他的前雇主。
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2. The witness testified against the accused in court.
证人在法庭上作证反对被告。
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3.She refused to testify against her friend because she believed he had done nothing wrong.
她拒绝作证反对她的朋友，因为她认为他没有任何过错。