It is always the basic material which constitutes the object and which, in the natural course of things, is worn down and becomes "older".

构成客体的总是基本物质，而在事物的自然过程中，这些基本物质被磨损，变得“陈旧”。

youdao

I'll pass on disrupting the natural course of my body, thank you very much.

我可不想扰乱身体的自然状态，谢谢。

youdao

Without treatment, however, the natural course of bipolar disorder tends to worsen.

缺乏治疗，双相情感障碍自然进程往往会更糟。

youdao

Milton acknowledges that the course he's chosen for himself may not be a natural one: Nature herself pushes a young man to begin a family and to seek credible employment .

弥尔顿知道他选择了一条,不那么正常的人生道路：,天性使得一个年轻人去结婚,去找一份可靠的工作。

耶鲁公开课 - 弥尔顿课程节选

In this class we're going to explore, throughout the course, what seems natural to us and try to make sense of it.

本堂课，我们将探索，通过这一课程，将我们看起来自然的事情,试图搞清楚。

耶鲁公开课 - 心理学导论课程节选

Of course, once you start thinking of it this way, it's natural to talk this way across a variety of things that the computer may be trying to do.

当然,一旦你开始用这种思维方式思考,你就会很自然地把这种思维应用到,电脑可能想要做的其它事情上

耶鲁公开课 - 死亡课程节选

But today, a permanent dam barrier not the envisioned natural course of rapids is what keeps sea lamprey at bay.

WSJ: Real Rapids in Grand Rapids?

The aim is to divert the river by a few metres and then allow it to flow on its natural course.

BBC: Ethiopia diverts Blue Nile for controversial dam build

So I think, Jake, in many ways it is the natural course of the way this town works and that administrations work.

WHITEHOUSE: Press Briefing