1 pollution

2 contamination

3 classifier: 个 gè

1 to wallow in the mire with sb (idiom); to follow the bad example of others

1 limescale

1 variant: 污 wū

1 a corrupt official

1 to wallow in the mire with sb (idiom); to follow the bad example of others

1 to bear shame and humiliation (idiom)

1 traitor minister and corrupt official (idiom); abuse and corruption

1 to bear humiliation to save one's skin (idiom)

1 to wash the dirt to find a defect (idiom); to find fault

2 to nitpick