swift
单词辨析：
指移动速度快的或能够快速移动的，也可指迅速或立即发生的。
a fast rate of increase
很快的增长率
She took a fast train to Shanghai.
她搭乘快车前往上海。
His motorboat is very fast.
他的汽艇速度非常快。
指持续或耗费时间短的，移动、做事等速度快的，或指人聪明、机敏的。
She gave the teacher a quick answer.
她给了老师一个迅速的回答。
He walked with quick steps.
他急速走着。
He is a quick boy.
他是一个机灵的男孩子。
The employee is a quick learner.
那名员工学东西很快。
指快速发生或完成的。
a rapid recovery
迅速康复
The company made a rapid profit growth in the last decade.
这家公司在过去10年间利润快速增长。
指立即发生或马上做出的；也可指移动速度快的或能够快速移动的，作此义解时只作定语。
a swift runner
跑得快的人
They gave a swift reply.
他们立刻给出了答复。
Hearing footsteps, the two thieves made a swift exit.
听到脚步声，那两名小偷飞快地溜走了。
相关例句：
Light and shade come in swift alternation; Days and months flash by as quickly as a weaver's shuttle.; Light travels like an arrow, and time like a shuttle.
光阴似箭，日月如梭。
Swift said the growing sophistication among biotech investors presented an opportunity for a more specialist investment fund.
斯威夫特说，生物科技领域的投资人越来越精明了，这也为我们获得一个更专业的投资基金提供了机会。
The buyer's response to these problems must be swift and decisive.
购买者必须迅速果断地对这些问题做出反应。
Swift and resolute action leads to success; self-doubt is a prelude to disaster.
迅速和坚决的行动是成功的保证，自我怀疑是一个灾难的前奏。
He plunged into the swift current and rescued one child after another.
他纵身跳进了激流，救起了一个又一个孩子。
The flood roared on, swift and violent.
水势迅猛异常。