上瘾

上瘾	shàng yǐn	to get into a habit / to become addicted
上	shǎng	used in 上声
上	shàng	(bound form) up; upper; above; previous / first (of multiple parts) / to climb; to get onto; to go up / to attend (class or university) / (directional complement) up / (noun suffix) on; above
瘾	yǐn	addiction / craving