either

有两个入口，露营地两端各一个。

There are two entrances, one at ___either end of the campsite.

我不吃肉，我丈夫也不吃。

I don't eat meat and my husband doesn't ___either.

许多科学研究试图要么证实、要么否定这一观点。

Many scientific studies have sought to ___either prove or disprove this idea.