Gearcase
n. 齿轮箱, 变速箱壳体, (自行车)齿轮罩
🗣️ 情景例句
Let's go into the kitchen,
我们到厨房去，
The sewing machine is out of order.
这缝纫机坏了。
decided to take some presents to a children's hospital.
盖茨决定送些礼物给儿童医院。