And the boy uses the trees to do two things, right: to go up, or go out, and come back, to return.

这个孩子用树做了两件事：,上去，出去，回来，落下。

耶鲁公开课 - 现代诗歌课程节选

I'm really tired and I have a lot of school work to catch up on.

我真是累坏了，我还有许多落下的功课得补起来。

I'd like 实战 - SpeakingMax英语口语达人

You start here and you fire a projectile It's going to go up and it's going to come down.

从这开始,你抛出一个物体,它将上升至一定高度然后落下

耶鲁公开课 - 基础物理课程节选

That's because they don't want to ever be caught cutting their dividends.

这是因为他们不想落下,减少股利的口实

耶鲁公开课 - 金融市场课程节选

What this means is that if you miss a class you need to get notes, and so you should get them from a friend or from the person sitting next to you.

这也就意味着,如果你落下了一节课,你就要看笔记,你可以向朋友或者身边的同学借来看

耶鲁公开课 - 心理学导论课程节选

You feel like someone's being left out.

你感觉有谁被落下了。

Is there any 课堂 - SpeakingMax英语口语达人

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

And this is useful because if you're actually writing a program that's interactive or that you want to change overtime much like you would a game, hopefully, the game is not going to have the bad guys, for instance, always standing in the same place or the rocks or whatever it is falling from the sky in the same place 'cause it would very quickly become a very tedious game.

这是很有用的，因为如果,写一个交互的程序或者,希望每次游戏都不一样，我们希望，游戏中的坏人物，别老是站在同一个地方或者同一块石头上,或者从天空中同样的位置落下,因为这立刻会使游戏变得乏味。

哈佛公开课 - 计算机科学课程节选

An object falls off a tall building.

一个物体从一栋高楼上落下

耶鲁公开课 - 基础物理课程节选