国内供应链可提供相当数量之标准尺寸窗户，但贮木场为在提摩太地区承包商最普遍之供应来源。

The national chains get some volume with standard size Windows, but lumberyards are the most common source of supply for contractors in Timothy's area.

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本课程着眼于生态学之基础课题，探讨生态系中之能量流动与物质流动，及外在与内在因子对生物体分布和数量之控制。

This is a basic subject in ecology that seeks to improve the understanding of the flow of energy and materials through ecosystems and the regulation of the distribution and abundance of organisms.

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我们繁衍得如此之快，以至于人口数量威胁到地球的生态系统。

We are reproducing ourselves at such a rate that our numbers threaten the ecology of the planet.

《柯林斯英汉双解大词典》

For me the absolutely shocking fact of this simile ] is that its primary purpose is merely to describe the number of angels who are prostrate on the burning lake of hell.

为了他们悲惨的境遇黯然神伤,对我来说，这个比喻令人震惊的事实,是它最初的目的只不过,是为了描述葬身于地狱火海的天使的数量之多。

耶鲁公开课 - 弥尔顿课程节选

You could imagine that you've got virus that's propagating inside your cells, making more and more virus, your immune system really responds well to that.

你可以想象,病毒在你的体细胞内繁殖,数量越来越多,你的免疫系统对此反应非常之强烈

耶鲁公开课 - 生物医学工程探索课程节选

This pool, twelve very large studies, if you put all the number of subjects in those studies together, it would come up to a million and a half people.

这项研究汇总了十二个大型研究,如果把所有研究的受测者数量加起来,将有一百五十万之多

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选