But endogenously generated or controlled but that there are some factors that you can use to influence it.

内源代谢的产生和控制，但是有一些因素是可以影响内源代谢的。

If you'll remember earlier in the video, I talked about how the circadian rhythm is, for the most part, endogenously, I think that's how you pronounce it.

视频前面有讲过，关于生物钟的问题，多数情况下内源代谢，我觉得是这么发音。

But another website that I looked at, Science Daily, said this: In a strict sense, circadian rhythms are endogenously generated, and although the definition for endogenously, and I'm not even sure if I'm pronouncing that correctly.

但是我看的另一个网站，“每日科学”是这么说的：严格来讲，生物钟是我们“内源代谢”产生的，不过“内源代谢”这个词的意思，我还不确定发音是否正确。