They glanced at each other, and retreated a step by a common and unconscious impulse.

他们互相看了一眼，由于一种共同的、不知不觉的冲动往后退了一步。

I'll explain it to you step by step.

我来一步一步地给你解释。

I am not rushing things and I'm taking it step by step.

我没急于求成，我正在一步一步地来。

I can make long hops, but you have to go step by step.

我可以跳得很远，但你必须一步一步来。

I have thousands of dreams to realize, but I have to do little by little, step by step.

我有成千上万的梦想要实现，但我必须一点点，一步步地去完成。