供参考这句子可用另一个结构来表达也许会较易掌握Only thirty percent of those who took the exam passed。从这句可以分拆为2句Only thirty percent of those passed.Those took the exam.所以of 在这里就是普通的介词的用法 (of those)一点意见 原帖的句子结构较紧密因为主句及从句之中的主语及动词都紧靠在一起而Only thirty percent of those who took the exam passed之中thirty percent (主句主语...
