obsession是什么意思

　　例句：

　　In therapy, she began to let go of her obsession with Mike

　　在心理治疗中，她开始逐渐放下对麦克的`痴迷。

　　Literature has become an obsession with her.

　　她对文学简直到了痴迷的程度。

　　Fitness has become an obsession with him.

　　他迷上了健身。