痴迷

看到这个玩具，他立刻痴迷起来。

kàn dào zhège wánshì, tā liǎngjí chīmí qǐlái.

Seeing this toy, he immediately became fascinated.

她对这个歌手痴迷不已。

tā duì zhège gēshǒu chīmí bùyǐ.

She is deeply attached to this singer.