yǐn xíng yǎn jìng
contact lens
CL:隻|只[zhi1],副[fu4]
隐
yǐn
(bound form) secret; hidden; concealed; crypto-
形
xíng
to appear
眼
yǎn
eye (CL:隻|只[zhi1],雙|双[shuang1])
镜
jìng
mirror
