睁一只眼闭一只眼

zhēng yī zhī yǎn bì yī zhī yǎn

to turn a blind eye

zhēng

to open (one's eyes)

one

zhī

classifier for birds and certain animals, one of a pair, some utensils, vessels etc

yǎn

eye (CL:隻|只[zhi1],雙|双[shuang1])

to close

one

zhī

classifier for birds and certain animals, one of a pair, some utensils, vessels etc

yǎn

eye (CL:隻|只[zhi1],雙|双[shuang1])