play into each others hands

• adj. 互相勾结(狼狈为奸)

play into each others hands的用法和样例：

例句

用作形容词 (adj.)

1. Politicians and labour leaders are playing footsie with each other while rail services get steadily worse.
   政客们和工会头头们互相勾结，而铁路服务事业则每况愈下。