The current is swiftest in the middle of the river.

河当中水流最急。

The swiftest path to destruction is through vengeance.

复仇是通向毁灭的捷径。

The gazelle is one of the swiftest and most graceful of animals.

瞪羚是最敏捷最优雅的动物之一。

I have learned that the swiftest traveller is he that goes afoot.

我已经明白最快的旅行是步行。

Belch [ midriff flesh convulsion ] the swiftest treatment method?

打嗝[ 膈肌痉挛] 最快的治疗方法?。