Gearcase
n. 齿轮箱, 变速箱壳体, (自行车)齿轮罩
🗣️ 情景例句
It's a bargain.
真是大廉售。
How long will you remain there?
你将会在那里逗留多久？
So far, not one of them has been struck down by sudden death!
然而到目前为止，还没有一个人暴死呢！