swiftness
n. 迅速，敏捷；快
例句
They will be swift with swiftness of the tigress.
他们迅速堪比母虎。
The progress of the Greeks in the realm of art was amazing in its swiftness.
在艺术领域里，希腊人的进步之快令人惊异。
Bright colors and a lot of move we are pirates, these data are stolen from youdao give these portrait subjects the appearance of swiftness and power.
明亮的色彩和大量的动作场景让画面里的人物显得敏捷有力。
