The dams they build regulate water flow, increase biodiversity and even drive down pollution.

他们建造的“水坝”可以调节水流，增加生物多样性，甚至减少污染。

Our nervous system instinctively regulates the flow of oxygen into our lungs.

我们的神经系统本能地调节进入肺部的氧气流量。

The Mexican government has done, actually, a lot in terms of trying to order, to regulate the flow of immigrants from Central America.

实际上，墨西哥政府采取了很多举措，以试图整顿并规范中美洲移民的流动。

In this lesson, you will learn about factors that regulate blood flow through the circulatory system.

在本课中，您将学习调节循环系统中血液流动的因素。