I don't want to have a hand in his personal affairs.

我不愿意过问他个人的事.

《现代汉英综合大词典》

George would like to have a hand in arranging the entertainment.

乔治想参与表演会的安排工作.

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I have a hand in connecting all those wires - it a matter of the decisions I made.

我可以参与连结所有的线 ------ 这只是我做何种决定的问题.

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