If you head downhill and follow any H2O you find, you should eventually see signs of people.

如果你朝下坡的方向，跟着发现的水源走，应该最终会看到人烟。

youdao

Above the glass of water, I have air, there's my H2O here.

在水面上有空气，这是水。

youdao

Remember the drinking fountain, that once ubiquitous, and free, source of H2O?

还记得喷泉饮水机吗？

youdao

Easton has been given a coveted spot on Brad Paisley's upcoming "H2O World Tour."

VOA: standard.2010.04.09

You need to know if it's an equilibrium, and you also need to know how many components you have in your system So, a glass of ice water with an ice cube in it, which is a heterogeneous system, has only one component, which is water, H2O.

要知道它是不是平衡的，你还需要知道,你的系统中有多少组分,一杯放了冰块的水，虽然它是个非均匀系统，但它只有一种组分，那就是水。

麻省理工公开课 - 热力学与动力学课程节选

So it helps us predict, will we see this, for example, h 2, which we're going to be about to do, we'll see is stabilized because it has more bonding than anti-bonding.

这帮助我们预测，我们等会会看到，比如H2O，我们等会要讲到，我们会看到它更稳定是,因为成键比反键更多。

麻省理工公开课 - 化学原理课程节选

Their H2O turns into H (ie, hydrogen atoms) and OH (so-called hydroxyl molecules).

ECONOMIST: Creative destruction

H2O Blocks is our ability to source block liquidity from the upstairs market and push it to our buyside Members.

FORBES: Crafting Market Structure Regulations

Metals, platinum-group elements, rare earth elements, and other volatiles, like H, H2O, and carbon compounds, are abundant on asteroids, many of which are relatively accessible from Earth.

FORBES: Move up http://i.forbesimg.com t Move down