guò yǐn
to satisfy a craving
to get a kick out of sth
gratifying
immensely enjoyable
satisfying
fulfilling
shàng yǐn
to get into a habit
to become addicted
yǐn jūn zǐ
opium eater
drug addict
chain smoker
wǎng yǐn
Internet addiction
net addiction
web addiction
yān yǐn
the urge to smoke
tobacco addiction
wǎng luò chéng yǐn
Internet addiction
net addiction
web addiction
yǐn tóu r
erhua variant of 癮頭|瘾头[yin3 tou2]