Gearcase
n. 齿轮箱, 变速箱壳体, (自行车)齿轮罩
🗣️ 情景例句
Just listen to the sound.
听听这些声音。
You're likely to see a cheerful message or two hanging on the wall.
很有可能会看到一两条挂在墙上的格言。
What did you say?
你说什么？