addiction

n. natural inclination,propensity癖性，嗜好。
△H.V.1.1.54: “Since his addiction was to coursesvain.”因为他的癖性本来是不务正业的。
△Oth. 2.2.6 (5):“each man to what sport and revels his addiction leadshim；”每一个人都可以随自己的爱好尽情游戏欢乐。

addiction瘾

见drug dependence条。