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氢键，然后受体就会关闭，大脑发送“嗯，是鲜味”信号。

The negatively charged oxygen atom from one molecule is pulled towards the positively charged hydrogen atoms of another, creating a strong attraction known as a hydrogen bond.

一个分子中带负电氧原子会另一个分子中带正电氢原子吸引，形成了强大吸引力，即氢键。

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，形成氢键，DNA 形成扭曲形状，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氢键与相对链上核苷酸配对，形成双链DNA。

So hydrogen bond is going to occur when we have hydrogen bonded to either a nitrogen, oxygen or a fluorine.

因此, 当氢与氮、氧或氟结合时, 就会发生氢键。

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

所以，氢键形成比断开还频，中，开始呈现出新美妙结构。

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多氢键分子。

Hydrogen bonds are so strong that it takes a lot of energy to break them.

氢键非常强大，需要大量能量才能打破它们。

Now let me show you where the hydrogen bond is.

现在让我告诉氢键在哪里。

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

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

这称为氢键 —— 液态水中单个分子只会通过氢键与其他一些水分子结合。

One hydrogen bond looks like this.

一个氢键是这样。

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

在氢键里，氢原子在原子之间也不平等共享。

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，我们可以破坏这些氢键，变成液体，这叫做炼脂，很美味。

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

氢键快速形成再断开，就好比是高中生之间关系，真是速战速决。

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

它们周围氢键牢牢地固定在原地。

What's holding them together are going to be these hydrogen bonds.

将它们结合在一起是这些氢键。

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多氢键将它们固定在原地，所以它们能够滚动。

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

水，同大多数其他物质不同，水分子之间有一种独特相互作用叫做氢键。

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，氢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。