题目内容：

Before ,wore out,worn out ,try to do,try doing step to do ,step doing wear ,dress ,put on,
neither ,either,none
both ,all,等
有什么区别

优质解答

neither.nor 两者都不 either.or两者中的任何一个 both...and两者都..后常用复数are.all三者或三者以上