obsession /əbˈseʃən/ ⭐⭐⭐⭐

= 痴迷；着迷；执念；过度关注

表示一个人对某人或某事想得太多、过分关注，甚至到了无法摆脱的程度。

1. 对某事的痴迷

He has an obsession with money.
他对金钱有一种痴迷。

an obsession with + 名词 ⭐⭐⭐⭐⭐
= 对……的痴迷/执念

Her obsession with success became unhealthy.
她对成功的执念变得不太健康。

2. 对某人的痴迷

He developed an obsession with her.
他开始对她产生了痴迷。

很常见的搭配

• an obsession with money → 对金钱的痴迷
• an obsession with power → 对权力的痴迷
• an obsession with success → 对成功的执念
• a lifelong obsession → 一生的执念/痴迷
• become an obsession → 变成一种执念

和 interest 的区别

interest = 兴趣

I'm interested in history.
我对历史感兴趣。

obsession = 痴迷、执念，程度远远超过普通兴趣。

His obsession with power drove him to extreme actions.
他对权力的痴迷驱使他采取了极端行动。

另外，相关形容词是 obsessed /əbˈsest/：

He's obsessed with money.
他对钱非常着迷/他满脑子都是钱。

可以记成：

interest → interested → obsession → obsessed
兴趣 → 感兴趣 → 痴迷/执念 → 痴迷的