He has a competent knowledge of English.

他有足够的英语知识.

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She has a competent knowledge of English.

她已掌握了足够的英语知识.

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All this makes the team members more competent knowledge crunchers winnow out the extraneous.

所有的这些能够使得团队成员成为胜任的知识消化者.

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The candidate of this position must have a competent knowledge of international finance.

这个职位的候选人必须对国际金融有充分的了解.

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