“步”的意思是走路时脚一次前进的动作，也就是“一步”。

The meaning of "步" is the action of moving one foot forward while walking, that is, "one step".

我们也用“步”来说做事情的阶段，比如“第一步”和“下一步”。

We also use "步" to refer to stages of doing something, such as "the first step" and "the next step".