未然 wèi rán
词语解释
◎ 未然 wèirán
[take preventive measures] 还未变成现实
未雨绸缪,防患于未然
◎ 未然 wèirán
[take preventive measures] 还未变成现实
未雨绸缪,防患于未然
词语解释
◎ 已然 yǐrán
[have already become a fact;be already so] 已经如此;已经成为事实
与其补救于已然,不如防患于未然
