從事於的用法和樣例:
例句
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他從事於物理研究/這一課題許多年了。
He has worked at physics/the topic for many years.
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他從事於語言學的研究。
He is engaged in studies in linguistics.
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他從事於醫學的研究。
He was engaged in medical research.
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電影界從事於電影業的人們
The people employed in the movie industry.
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