单词thick-as-thieves
a close friend; the bartender was chummy with the regular customers; the two were thick as thieves for months.
亲密的朋友；这个酒吧招待对常客很亲密；他们两个亲密了几个月。
I see you two all the time , you"re thick as thieves , you are ! He must"a said something !
我知道你俩天天在一起，亲密无比，狼狈为奸！他一定说了什么！
We are brothers as thick as thieves.
我们手足情深亲密无间。