医生警告说，与多人发生性关系会增加感染性病的风险。

The doctor warned that ___promiscuous behavior increases the risk of sexually transmitted infections.

他交友不挑，什么人都来往。

He has a ___promiscuous approach to making friends, accepting anyone into his circle.

这家二手商店有各式各样的二手商品。

The thrift store has a ___diverse assortment of second-hand items.