step為什麼要雙寫

因為它是重讀閉音節。She moved a step closer to me.

她朝我靠近一步。

There was a bounce to his step.

他的步伐矯健有力。

He took a step towards the door.

他朝門口邁了一步。

I took a step toward him.

我朝他邁出了一步。

He took a step backwards.

他退後一步。