to worry

• 不必为孩子们担心。

  You don't need to worry about the children.

• 他很担心计划不能完成。

  He's really anxious that the project won't be finished.

• 她的病使我非常担心。

  I'm extremely concerned about her illness.

• 我们大伙都为你担心死了。

  We're all worried to death about you.