两脚用力离开原地向上或向前跳。

Feet hard up or leave you to jump.

youdao

双脚稳稳地站在地上，尽量向前跳。

With your feet firmly planted on the ground, jump as far forward as you possibly can.

youdao

吸气，双脚向前跳或者走，脊柱伸展，向前看。

Inhale, jump or walk the feet forward, lengthen the spine, look at the front.

youdao

It's a long sequence of instructions, it starts at the beginning, walks through, may jump around a little bit, but eventually comes down at the end. It's okay for the things you're doing for the early problem sets.

这是一长串指令，从开端开始，向前步行，偶尔来回跳一会儿,但是最终会走到结尾,这些足以解决最初级的问题。

麻省理工公开课 - 计算机科学及编程导论课程节选