I returned to the room upstairs with swiftness.

我马上回到了楼上的房间。

The swiftness of this car has attracted the attention of many young people.

这辆汽车的敏捷引起了很多年轻人的关注。

He completed the affairs assigned by his superiors in a swiftness.

他迅速完成了上级交代的事物。

They will be swift with swiftness of the tigress.

他们迅速堪比母虎。

His reaction of swiftness surprised us.

他迅速的反应让我们吃了一惊。

We condemned the violence in swiftness.

我们立即谴责了那种暴行。

I would go flying through the air with dizzying swiftness.

我会眼花缭乱地从天空中飞过来。

Information travels with such swiftness in our connected world.

在我们这个互连的世界里，信息的传播是如此的迅速。