飞快

飞快

Extremely fast; swiftly.

Describes the speed of running.

他跑得飞快，几乎没有人能追上他。

He runs extremely fast; hardly anyone can catch up with him.

Describes the rapid passage of time.

时间飞快地过去了，我们的相聚似乎只是瞬间。

Time passed quickly; our gathering felt like just a moment.

Describes the fast movement of the train.

火车飞快地驶过田野，车窗外风景不断变换。

The train swiftly passed through the fields, with scenery constantly changing outside the window.