首先从悬崖上跳下，然后在落下时你就能长出自己的翅膀。

First you jump off the cliff and you build your wings on the way down.

youdao

他们估摸到十二点了，在影子落下的地方做了记号，然后开始挖。

They judged that twelve had come; they marked where the shadow fell, and began to dig.

youdao

远远的，太阳在西边落下。

Far off to the west the sun was sinking.

《柯林斯英汉双解大词典》

Now, one of things I left hanging is, I said, OK, you build it out of primitives.

现在，我落下的一件事情是，我说过了，好的，你在原始数字之外建造它。

麻省理工公开课 - 计算机科学及编程导论课程节选