After managing to quit smoking for a year, he unfortunately lapsed back into old habits.

他戒烟一年之后，不幸烟瘾又犯了。

She lapsed into silence again.

她又陷入了沉默。

He had lapsed into unconsciousness.

他陷入了昏迷状态。

He soon lapsed back into his old ways.

他很快又犯老毛病了。

The offenders lapsed into a sullen silence.

这些罪犯陷入了愤懑的沉默。

His concentration lapsed after a few minutes.

几分钟后他的注意力就下降了。