1. 他不知不觉中养成了吸烟的习惯。
He had fallen into the habit of smoking before he knew it.
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2. 不知不觉中,报告会已临近终点。
Without notice, the lecture came to its end.
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3. 不知不觉中,我们早已把山移。
We were moving mountains long before we knew we could.
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unconsciously adv. 无意中, 不知不觉.
I unconsciously love this song
i have liked this song without any feelings