I repeated what you said, word for word.

我逐字你的话。

The students had to retell the story in their own words.

学生必须用自己的话这个故事。

She mentally rehearsed what she would say to Jeff.

她在心里着要对杰夫说的话。

Let me try retelling the story.

我试着这个故事吧。

Retell the story in English.

把这个故事用英语一遍。