Then they jump onto the bobsleigh and continue racing down the track.

VOA: special.2010.02.10

As soon as lanthanum takes that electron, this level rises ever so slightly, and then we jump down here and fill in the lanthanide.

一旦镧得到了电子，这一层就会稍稍上升，然后我们向下填一下镧系元素。

麻省理工公开课 - 固态化学导论课程节选

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

And other stocks might jump up and down a lot because they're very volatile.

另一些股票可能上下浮动,因为它们反复无常。

麻省理工公开课 - 计算机科学及编程导论课程节选