Where some people a hard nut to crack, but who also can not be re_英语解答

Where some people a hard nut to crack, but who also can not be replaced .
什么意思谁知道

人气：322 ℃　时间：2019-10-23 08:00:00

解答

是病句吧!
hard nut to crack 是很麻烦,很难解决的问题
我想这句的意思是,有些人很倔强,但是他们也是无可替代的.