He broke the rule that no one was allowed to smoke on campus .
因为主句的时态是过去式,要保持时态一致,所以同位语从句用过去时态.
no one was allowed to smoke on campus 用来修饰rule
是其的同位语从句
He broke the rule that no one was allowed to smoke on campus .
因为主句的时态是过去式,要保持时态一致,所以同位语从句用过去时态.
no one was allowed to smoke on campus 用来修饰rule
是其的同位语从句