当我们沿着一条拥挤的街道向前走的时候，我们听到后面有急促的脚步声和喊叫声。

And then, walking down a crowded street, we heard behind us the sound of pounding feet and somebody yelling at us.

youdao

如果你能听到脚步声，如果你的脚很用力地着地…如果你像我们在实验室说的发出砰砰的重击声，那么你正是在笨拙地跑步。

If you can hear your feet, if your feet are landing really hard... if you are thumping as we call it in my lab, then you're running poorly.

youdao

不久我们听到一阵喧噪声，和脚步声。

Presently we heard a bustle, and a tread of feet.

youdao