Pandora's box

剑桥词典

something that creates a lot of new problems that you did not expect
潘多拉魔盒（指邪惡之源）
Sadly, his reforms opened up a Pandora's box of domestic problems . 可悲的是，他的改革開啓了潘多拉魔盒，引發了一系列的國內問題。 返回 Pandora's box