Stop worrying about their marriage ─ it isn't your problem.

　　別替他們的婚事操心了——那不關你的事。

　　She had been worrying ever since the letter arrived.

　　自從接到那封信后她就一直焦慮不安。

　　Don't keep worrying him with a lot of silly questions.

　　別老用許多愚蠢的問題打擾他。

　　He's always worrying about his weight.

　　他總是為自己的體重發愁。

　　It is particularly worrying that nobody seems to be in charge.

　　特別令人擔憂的是，似乎沒有任何人在負責。