往脸上抹黑

wǎng liǎn shàng mǒ hēi

to bring shame to

to smear; to disgrace

wǎng

to go (in a direction)

liǎn

face

shàng

(bound form) up; upper; above; previous

to smear

hēi

abbr. for Heilongjiang province 黑龍江|黑龙江[Hei1 long2 jiang1]