And they're happy below the water line?

水下的人会幸福吗？

We know that the water line came up higher.

看到水位上升我们就知道飓风季要来了。

You could actually see a water line where it came up to here.

你可以看到一条水线一直蔓延到这里。

And it wasn't just about creating ecosystems above and below the water line.

合作完成了这项工作。

In a creek or river, stepping-stones are rocks with flat tops that sit above the water line.

在小溪或河流中，垫脚石是指有露出水面的平坦顶部的岩石。

Above or below the water line, a melted ice cube replaces exactly the same volume of water.

不论在水面之上或之下，一颗融化的冰块会取代完全相同体积的水量。

See, they never thought the Titanic would sink, so they didn't paint it above the water line.

看，他们从没想过泰坦尼克会沉，所以水位线以上没有涂漆。

That usually means that the water line has been either chewed on by a ground hog or some other rodent.

这通常意味着水管被土拨鼠或其他啮齿动物咬过。

By then more than 70 percent of large US cities used lead water lines.

到那时，超过 70% 的美国大城市使用铅水管线。

Now I use this for the water line on the top and the bottom.

现在我将它用于顶部和底部的水线。