一、定义 在主从复合句中,充当主语的从句,即为主语从句。 What made her happy was that she won the game in such an important match. 令她高兴的是在这么重要的比赛中她获胜了。 It worried the woman that her son was always playing computer games. 儿子一直在玩电脑游戏,这让这个女人很担心。