Every attack takes place near a body of water or a water- based name.

犯罪现场不是在水边 就是死者姓名与水有关。

We chose concrete because it's heavy and displaces water, based on Archimedes' principle.

基于阿基米德的原理，我们选择了混凝土，因为它很重，可以排水。

Water based solutions, earlier I called them aqueous solutions.

水基溶液，之前我称它们为水溶液。

So what I use in the morning is this water based cleanser.

所以我早上使用的是这种水基清洁剂。

But the problem with dividing up water based on our worldview is that our worldview is...well...fluid.

但是根据我们的世界观来划分水的问题在于我们的世界观是… … 嗯… … 流动的。

This has been an important question. Let me ask you guys: how much water, based on what you know so far, could you take out of, say, an aquifer...under the city?

那是个重要的问题。我来问问你们：基于你们目前的知识，你们觉得从城市下面的一个含水层能取到多少水？

Since we humans have a habit of making things all about us, historically we have divvied up all that water based on our own perceptions.

由于我们人类习惯于让一切都围绕着我们， 从历史上看，我们根据自己的看法分配了所有的水。