时机一错过,不会再来。比喻要把握时机,果断行事。《国语・越语下》:“臣闻之,得时无怠,时不再来,天予不取,反为之灾。”《水浒后传・第七回》:“事机一失,时不再来。”
英语 All time is no time when it is past.(Lost time is never found again.)