And to understand these processes, we need to zoom down to the level of our individual cells.

要了解这些过程，我们必须放大到我们的个体细胞上。

She climbed to the top of the slide, then zoomed down and soared up again along the icy curve.

她爬上滑梯顶端，飞速地滑了下来，又借着冰梯的弧度飞到了半空中。

We zoom down and we see there's beautiful pigments and reflectors.

我们缩小，我们看到有漂亮的颜料和反光镜。

The spark had zoomed down the wet string into the metal key, where Ben could feel it.

火花顺着湿漉漉的琴弦向下射入金属琴键， 本能感觉到。

The fifth owl zoomed down the chimney so fast it actually hit the floor before zooming into the air again with a loud screech.

第五只猫头鹰嗖的一声从烟囱里蹿了下来，因速度太快，一头撞在地上，它尖厉地叫了一声，又忽地腾空飞起。

Then, we went up to the top of the hill, pushed off, and … zoomed all the way down to the bottom!

然后，我们上到山顶， 推开，然后… … 一直向下到山脚！

Because with science, we can figure out why we went so slow, and how to get ourselves zooming down the hill instead!

因为有了科学， 我们可以弄清楚为什么我们走得这么慢，以及如何让自己迅速下山！

Let's now zoom down to the smallest insects known, about half the size of a grain of salt, only 0.15 millimeters long: the Fairy Fly.

现在，让我们放大来到已知最小的昆虫，大约有一粒盐一半大小。

Something that pushes or pulls is called a force, and the force that was stopping us from zooming down the hill is called friction.

推或拉的东西称为力，阻止我们从山上爬下来的力称为摩擦力。

If we zoom down to the molecular level, we can see that proteins, if we unravel their three-dimensional architecture, are actually just long strings of building blocks.

如果我们缩小到分子水平， 我们可以看到蛋白质，如果我们解开它们的三维结构， 实际上只是一长串的构建块。

We want them to—look, they're busy figuring out how to better get around the beach, get along with each other, maybe build some kind of nice slide so they can zoom down and fly off and have some fun.

我们希望他们——看，他们正忙着想办法如何更好地游览海滩、彼此相处，也许建造某种漂亮的滑梯，这样他们就可以缩小并飞走并享受一些乐趣。