请问They were worried about sth.中是were做系动词,worried作表语,about st

请问They were worried about sth.中是were做系动词,worried作表语,about st 请问：They were worried. 有没有They were worried about the girl sad about,were,girl,they,worried,sad,the连词成句 a married couple were very worried about be worried about sth. they were worried是什么意思? The parents were worried about their daughter because nobody 英语翻译Students were worried about escaping to college in Antof Were you worried about your daughter last night? be worried doing sth 还是be worried about doing sth worried about是词组吗