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。