Never relax your vigilance while you live in peace. 你們要居安思危。
Her parents had gone through the Depression so they often warned her to be mindful of danger even in prosperous times. 她的父母經(jīng)歷過(guò)大蕭條時(shí)代,所以經(jīng)常提醒她即使在經(jīng)濟繁榮的時(shí)候也要居安思危。