不像来自那些污秽场所的肉，它不会污染河流和小溪，不会大量消耗地下水，也不会引起滥伐森林。

Unlike meat from those filthy places, it will not pollute rivers and streams, deplete groundwater or cause deforestation.

youdao

几年前我做这项研究时，我探访了其中几个比较典型的洞穴，它们都很潮湿，你们也知道这是因为小溪和河流的缘故。

When I was researching this for a study a few years ago, I visited a couple of these typical limestone caves, and they were all very wet, you know, from streams and rivers.

youdao

所以即使在正常条件下，这些亚物种间的基因流动也更像是一条断断续续的细流，而不是一条不停流淌的小溪。

So, even under normal situations, the gene flow among the subpopulations is more of an intermittent trickle than a steady stream.

youdao