问题描述：
分析一下这个句子啦
There ought to be less anxiety over the perceived risk of getting cancer than exists in the public mind today.
这里over的意思是?
than引导定语从句,那这个定语从句修饰的是哪个词啊
There ought to be less anxiety over the perceived risk of getting cancer than exists in the public mind today.
这里over的意思是?
than引导定语从句,那这个定语从句修饰的是哪个词啊
问题解答：
我来补答展开全文阅读