Meaning of dān xīn:
担心
to be anxious; anxious; worried; uneasy; to worry
Wǒ hěn dānxīn míngtiān de kǎoshì.
我很担心明天的考试。
I am very anxious about tomorrow's exam.
Tā zǒng shì wèi měi jiàn xiǎo shì gǎn dào dānxīn.
她总是为每件小事感到担心。
She always feels anxious about every little thing.
Tā duì míngtiān de kǎoshì gǎndào hěn dānxīn.
她对明天的考试感到很担心。
She is very worried about tomorrow's exam.
Wǒ hěn dānxīn zhège kǎoshì.
我很担心这个考试。
I am very uneasy about this exam.
Wǒ hěn dānxīn míngtiān de kǎoshì.
我很担心明天的考试。
I am very worried about tomorrow's exam.