either
det. /ˈiːðər/ A1
任一的；两方的
One or the other of two people or things.
仙境例句
The Dormouse slept between the Hatter and the Hare, who sat on either side of it.
睡鼠睡在帽匠和三月兔中间，他俩一边一个坐着。
原著这一句
Do cats eat bats?” and sometimes, “Do bats eat cats?” for, you see, as she couldn’t answer either question, it didn’t much matter which way she put it.
“猫吃蝙蝠吗？”有时又变成“蝙蝠吃猫吗？”因为你看，反正这两个问题她都答不上来，怎么问也就无所谓了。
卡罗尔原著 · 第 1 章