One hydrogen bond looks like this.

一个键这样。

They're held in place pretty rigidly by all the hydrogen bonds surrounding them.

它们被周围键牢牢地固定在原地。

In a hydrogen bond, a hydrogen atom is shared, also unequally, between atoms.

在键里，原子在原子之间也被不平等共享。

Hydrogen bonds form and break like high school relationships, that is to say, quickly.

键快速形成再断开，就好比高中生之间关系，速战速决。

So, hydrogen bonds form much more frequently than they break and beautiful structures start to emerge from the chaos.

所以，键形成比断开还频繁，混乱中，开始呈出新美妙结构。

But a single water molecule in ice will have more molecules hydrogen bonded to it than in liquid water.

但冰中单个水分子将比液态水中具有更键分子。

Urea breaks hydrogen bonds between molecules.

尿素破坏分子间键。

The bases pair up, forming hydrogen bonds, and the DNA forms a twisted shape that is known as a double helix.

碱基配对，形成键，DNA 形成扭曲形状，被称为双螺旋结构。

The nucleotides on one strand pair up using hydrogen bonds with nucleotides on the opposing strand to create the double-stranded DNA.

一条链上核苷酸通过键与相对链上核苷酸配对，形成双链DNA。

Water, for example, is very well-known for its tendency to form hydrogen bonds.

例如，水因其形成键趋势而广为人知。

Water has a special kind of interaction between molecules that most other substances don't have, and it's called a hydrogen bond.

水，同大数其他物质不同，水分子之间有一种独特相互作用叫做键。

As we heat these saturated fats up, slowly, we can disrupt those hydrogen bonds and turn to liquid, called rendering and is delicious.

当我们慢慢加热这些饱和脂肪时，我们可以破坏这些键，变成液体，这叫做炼脂，很美味。

But below 4 degrees, the kinetic energy of the water molecules starts to fall below the energy of the hydrogen bonds.

但温度低于4 度时，水分子动能开始跌落低于键内能源量。

It's known as hydrogen bonding — a single molecule in liquid water will only be hydrogen bonded to a few other water molecules.

这被称为键 —— 液态水中单个分子只会通过键与其他一些水分子结合。

In a single drop of water, hydrogen bonds form extended networks between hundreds, thousands, millions, billions, trillions of molecules, and these bonds are constantly breaking and reforming.

一滴水里，数百、 数千、 数以百万，数十亿，数万亿分子之间，键由此而形成大范围网络，这种连接又不断地断开再重新形成。

But up here on the surface, these water molecules don't have as many hydrogen bonds holding them in place and they're able to sort of roll around.

但在表面上，这些水分子没有那么键将它们固定在原地，所以它们能够滚动。

When glutamate gets in, it forms a hydrogen bond with other compounds near that hinge, and the trap snaps shut, sending the “Mmm, umami” signal to your brain.

当谷氨酸进入时，它会与铰链附近其他化合物形成键，然后受体就会关闭，向你大脑发送“嗯，鲜味”信号。

They engage in additional kind of loose relationships with other neighboring hydrogen and oxygen atoms. These loose, somewhat fleeting relationships are called hydrogen bonds.

它们与其他相邻原子和氧原子建立了一种额外松散关系。这些松散、稍纵即逝关系被称为键。

The nucleotides on one strand form hydrogen bonds to complementary nucleotides on the other strand; specifically, A bonds with T via two hydrogen bonds, and C bonds with G, via three hydrogen bonds.

一条DNA链上核苷酸通过键与另一条DNA链上核苷酸互补配对，具体而言，A与T通过两根键配对，而C与G通过三根键配对。

The hydrogen bonds between that oxygen and those outer hydrogens are enough to keep the molecules bound together so it's not gaseous at room temperature.

氧和那些外部之间键足以使分子结合在一起，因此它在室温下不气态。