I saw him in conversation with a friend.

我看见他和朋友谈话.

《简明英汉词典》

They were in conversation with the Swedish girl.

他们都在跟那位瑞典姑娘交谈.

辞典例句

Just then I was caught up in conversation with Mrs. Jones.

那时我正同琼斯太大谈得很起劲.

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I saw her in conversation with a young man in the meeting room.

我看见她在会议室与一位年轻人谈话.

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