(b) ~ of sth person or thing that brings sth about 促成某事的人或物 eg：The organization he had built up eventually became the instrument of his downfall.
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促成某事的人或物
A person or thing that contributes to something
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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模块上移
模块下移
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