who can help me with English?either of us can help you.we are both from the USA.为什么用either?
问题描述：
who can help me with English?either of us can help you.we are both from the USA.为什么用either?
each both neither为什么不行
答
因为后文的we both 锁定在人数只有两人
那么each of us 倾向于三人以上
只有we both 的用法,没有both of us 的用法
nither of us 意思是两人都不,意思相反