Rapidness
n. 快, 动作敏捷, 动作快, 迅速, 陡, 险峻, 急流, 湍滩
🗣️ 情景例句
Well, I'd better be on my way.
好啦，我该走了呢。
It's faster to go by plane than by boat.
和坐船比，坐飞机是更快的。
Ah, it's a secret!
呵，这是个秘密！