氣味相投
be birds of a feather;be two of a kind;be like-minded
他們～，互相勾結(jié)。They are birds of a feather,acting in collusion with each other.
氣味相投qì wèi xiānɡ tóu
氣味：指思想、性格、作風(fēng)、志趣、情調(diào)等；投：投合。形容雙方在思想、性格、志趣、情調(diào)等方面都一致，彼此合得來。be two of a kind, birds of a feather, have the same likes and dislikes