either or的反義詞為neither nor
例句
1、
Most of my friends were either stuffed or plastic.
我的大部分朋友,要麼呆板要麼虛偽。
2、
Pop songs are fine too, so long as the people singing them are either young or cool.
流行歌曲也沒問題,只要唱歌的人要麼年輕要麼夠酷。
3、
because that synapse is either failing or gone.
因為那個突觸要麼衰弱要麼消失了。