◎ 打交道 dǎ jiāodào(1) [have intercourse;handle;negotiate;come into contact]∶个人、组织或国家之间进行交易或发生联系(2) [make dealings with]∶与…交往我从未跟他打过交道(3) [follow]∶与物发生联系,指从事一种职业那些同大海打交道的水手-----------------国语辞典：彼此接触往来、交际或协商处理事务。《文明小史．第三二回》：「外国人在我们中国那样横行，要拿些四书、五经、宋儒的理学合他打交道，如何使得？」英语 to come into contact with, to have dealings法语 avoir affaire à qqn
◎ 打落水狗 dǎ luòshuǐgǒu[beat a drowning dog;(fig) completely crush a defeated enemy;beat the mad dog even through it is already in the water]∶已经落水的狗也必须坚决打击。比喻要彻底打跨处于失败地位的凶恶敌人。也指不能放过已失势的坏人。“落水狗”。比喻受到重大打击的凶恶的坏人或敌人 -----------------国语辞典：趁他人失败或危难时再加以打击。参见「落井下石」条。英语 lit. to beat a drowning dog (idiom), fig. to pulverize an (already defeated) enemy, to hit sb when he's down