lapse
词义
① a small mistake, esp. one that is caused by forgetting sth or by being careless疏忽大意，失误；记错，忘却 ［+in sth，+of sth］
② an example or period of bad behaviour from sb who normally behaves well (一时的)行为失检，失足
③ ［常用单数］ a period of time between two events (两事件间的)时间间隔 ［近interval］
④ to gradually become weaker or come to an end 衰退，减弱；逐渐消失，结束 ［近cease, descend］
⑤ (of an agreement, legal right etc) to be no longer valid because the period of time that it lasts has come to an end （协议、合法权利等的）失效，期满终止
这个词不太熟，谢谢海豚姐
