She stepped down from the train onto the platform.

她走下火车来到站台上。

We stepped down the stair.

我们走下楼梯。

She stepped down, looking confused.

她走下楼，看起来一脸困惑。

Heidi immediately stepped down from the stool and ran down-stairs.

海蒂立刻从凳子上下来，跑下楼。

He stepped down Sunday.

他在星期天辞职。