Definition: to think or worry about something Level: C2
她这些天心事重重。
She ___has a lot ___on ___her ___mind these days.
我心事太多，无法专注于工作。
I ___had too much ___on ___my ___mind to focus on work.
当你心事重重时，很难入睡。
When you ___have something ___on ___your ___mind, it's hard to sleep.
