Meaning of dān yōu:
dān yōu
担忧
Verb
to worry; to be concerned
Wǒ duì míngtiān de tiānqì gǎndào hěn dānyōu.
我对明天的天气感到很担忧。
I am very worried about the weather tomorrow.
Tā duìyú kǎoshì de chéngjī gǎndào yǒuxiē dānyōu.
他对于考试的成绩感到有些担忧。
He is somewhat concerned about his exam results.