Dangerous combo-- speed walking and speedwagon.

危险组合啊 竞走+摇滚。

You know the speed walking rules!

你知道竞走的规则！

Lightning is really fast and I like speed walking.

闪电真的很快，而我喜欢竞走。

We've been speed walking since 8 a. m.

我们从8点开始一直在竞走。

Anna and Penelope are doing something they both love—speed walking.

安娜和佩妮洛浦正在做她们两个都很喜欢的事情——竞走。

Since I've been working in an office, my speed walking has been much slower.

自从我在办公室上班，我的竞走就变得慢多了。

From the footprints, scientists can determine how dinosaurs walked, calculate their length, weight and size, and even estimate their walking speed.

通过这些脚印，科学家可以确定恐龙是如何行走的，计算它们的长度、重量和大小，甚至估计它们的行走速度。