printf So here I'm culling printf in a loop again and again, but I'm literally overwriting the previous thing that I wrote.

所以这里我一次次地在循环中使用，但是我逐行地覆盖了我之前所写的东西。

哈佛公开课 - 计算机科学课程节选

Use this pattern in any situation where you want to explain you've done it before.

当你想解释之前已经做过某事的时候，可以在各种情形下使用这个句型。

I've already 课堂 - SpeakingMax英语口语达人

As time goes on, we've developed ever more complex machines to study people and we've talked about some of these already: EKG machines, so an example of an electrical device that can be used to monitor a very elaborate function deep inside your body, the beating of your heart and the rhythm of your heart.

如今,我们已经有功能更加复杂的设备,来研究人类,比如之前说到的心电图,我们使用电子装置,对身体内部机能进行精确地监控,具体到心电图就是心跳和心率

耶鲁公开课 - 生物医学工程探索课程节选

This is another wonderful pattern that you maybe are not now using often.

这个句型你可能之前并不常常使用，但它也是个非常棒的句型。

I'm frustrated 课堂 - SpeakingMax英语口语达人

In order to compute using this formula you have to know the true probabilities.

使用这些公式之前,必须知道真实的概率值是多少

耶鲁公开课 - 金融市场课程节选

The "I want to" pattern is a great pattern that you probably have been using and you should use often.

I want to”句型是一个非常棒的句型，你可能之前早已用过，你也可以多多使用这个句型。

I want to 课堂 - SpeakingMax英语口语达人