testifying
v.
作证，证明( testify的现在分词 );
证明，证实;
例句:
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Testifying in court on behalf of a topless restaurant.
来自New Scientist
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He hopes to have his 12-year prison term reduced by testifying against his former colleagues.
他希望通过出庭检举从前的同事缩短自己12年的刑期。
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The witness's demeanor in testifying provides useful guidance in making this assessment.
证人作证时的举止为作出上述判断提供了有用的指导.
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The witness stood down after testifying to the prisoner's innocence.
证人在证明拘留犯无罪后退席.
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King held a hearing Wednesday with former government officials testifying.
来自VOA
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He was testifying Friday at a hearing in Kenner, La.
来自WSJ