除沾染

decontamination

to get rid of / to remove / to exclude / to eliminate / to wipe out / to divide / except / not including

to moisten / to be infected by / to receive benefit or advantage through a contact / to touch

variant of 沾[zhan1] / to moisten

to pollute (often fig.) / to be infected by / to gain a small advantage

to dye / to catch (a disease) / to acquire (bad habits etc) / to contaminate / to add color washes to a painting