He held the country together, he held the struggle together.

他团结了整个国家，他团结了这场斗争。

It is often held together with netting.

通常用网把它固定在一起。

But it was colour that held his works together.

但让他的作品凝聚在一起的是色彩。

My Mom was… basically the glue that held me together.

妈妈本质上就是支撑着我的粘合剂。

For example, take molecules, atoms held together by covalent bonds.

例如分子中原子有着共价的联系。

As two objects impacted, gravity held them together.

两个石块撞击后，引力使之结合。

And my mother was the glue that held us all together.

我母亲是把我们团结在一起的粘合剂。

Modern feathers consist of thousands of fibres held together by tiny hooks.

现代鸟类羽毛由成千上万束靠细钩聚拢在一起的纤维构成。

Unmixable ingredients like oil and water can be blended and held together by what?

像油和水这样不可混合的原料可以用什么混合在一起？

The bones of the skull are held together by fibrous joints called sutures.

颅骨骨骼由一种叫做骨缝的纤维性关节结合在一起。

SPNs do often contain conventional polymers that are held together by covalent bonds.

SPN通常含有由共价键连接在一起的普通聚合物。

And then there's the planet itself, which is literally held together by gravity.

然后就是地球本身了，实际上这是由引力组成的地球。

Another year they took cover beneath very small glass greenhouses held together by wires.

又过了一年，它们被罩在由电线连接起来的极小玻璃温室的下面。

What if its a pile of rocks just loosely held together by primordial gravity?

而是被原初引力聚焦在一起的一堆松垮岩石呢？

Concrete is a mix of stone and sand held together with cement.

混凝土是石头和沙子与水泥结合在一起的混合物。

He became a vital part of the glue that held the whole Roman Empire together.

他是罗马帝国团结一致的关键。

Cheese is a combination of fat, water, and it's all held together with protein.

奶酪是脂肪，水和蛋白质的结合。

The designs are intricate and non-standard, and the components are held together by almost indestructible glues.

它们的设计繁复而缺乏统一标准，组件也被胶粘剂牢固地粘在一起。

The movement in South Africa was held together in large part by women in the country.

南非的运动很大程度上是国内的女性坚持下去的。

Today you learned that open clusters contain hundreds or thousands of stars held together by gravity.

今天你了解到，开放星团包含数百或数千颗恒星，通过引力聚集在一起。