Gearcase
n. 齿轮箱, 变速箱壳体, (自行车)齿轮罩
🗣️ 情景例句
I'd really like to.
我真的希望帮忙。
Laugh, and the world laughs with you; weep, and you weep alone.
你笑，人人陪你笑；你哭，惟独你自哭。
This echo-location in bats is often compared with radar, the principle of which is similar.
蝙蝠这种回声定位常常可与雷达相比较，其原理是相似的。