rapid
adj. /ˈræpəd/ B1
快速的；迅疾的
Happening or moving with great speed.
仙境例句
With rapid little steps, the Mouse walked away, too angry to finish its tale.
老鼠迈着急促的小步走开了，气得连故事都不讲完了。
原著这一句
She got up and went to the table to measure herself by it, and found that, as nearly as she could guess, she was now about two feet high, and was going on shrinking rapidly: she soon found out that the cause of this was the fan she was holding, and she dropped it hastily, just in time to avoid shrinking away altogether.
她站起身走到桌边量了量自己的身高，发现据她估计，自己现在大约有两英尺高，并且还在急剧缩小：她很快发现原因在于自己手里拿着的那把扇子，于是急忙把它扔掉，这才刚好避免了彻底缩得无影无踪。
卡罗尔原著 · 第 2 章