The foxes hid themselves in the places (that)couldn't be found.为何_其他解答

The foxes hid themselves in the places (that)couldn't be found.
为何用括号中词?
为什么不用where?

人气：133 ℃　时间：2020-06-25 23:13:38

解答

括号中的that是可以不要的,
that只是指代前面的place
后面的couldn't be found 是对place的补充说明
是一个非限制式从句