"There is a custom by which the young should respect the old."中为什_英语解答

"There is a custom by which the young should respect the old."中为什么用"by which"?

人气：443 ℃　时间：2020-08-02 08:12:47

解答

实际上是respect the old by a custom（依据一个风俗） which 引导定语从句,从句中的介词可以放在which前面．