lapse into something
phrasal verb with lapse verb [ I ] uk/læps/ us/læps/
(LESS ACTIVE)
（言谈举止）陷入（消极的状态）；显得异常
to start speaking or behaving in a less active or acceptable way
No one could think of anything more to say, and the meeting lapsed into silence. 所有人都想不出该再说些什么，于是会议陷入了沉默。
(WORSE)
陷入（更糟糕的状况）
to gradually get into a worse state or condition
He lapsed into a coma and died four days later. 他陷入昏迷状态，于4天后去世。