Translation of "Crush" in Chinese

Mary was Tom's high school crush.

玛丽是汤姆高中时的暗恋对象。

- I think Tom has a crush on Mary.
- I think that Tom has a crush on Mary.

我觉得汤姆爱上玛丽了。

It looks like Tom has a crush on Mary.

看来汤姆热恋着玛丽。

- He has been secretly in love with her.
- He has had a crush on her.

他一直暗恋着她。