She looked very preoccupied.她看上去心事很重。

She's very preoccupied. She's got a lot of worries at work as well as at home.她心事重重, 工作以及家庭中都有很多烦恼。

He's too preoccupied to notice when I'm not feeling well.他太专注于自己的事, 没有注意到我身体不舒服。

He's become preoccupied with insurance policies.他对保险政策变得非常关注。