天下乌鸦一般黑

Evil people are samely bad all over the world.

tiān xià wū yā yī bān hēi ㄊㄧㄢ ㄒㄧㄚˋ ㄨ ㄧㄚ ㄧˋ ㄅㄢ ㄏㄟ