Polymers are long chain-like molecules that are made up of smaller repeating links.

聚合物由较小的重复链组成的长链状分子。

And my specialty was messenger RNA. Like proteins, messenger RNAs are long chainlike molecules composed of building blocks.

我的专长 RNA。 与蛋白质一样， RNA 由构件组成的长链状分子。

Now, you need to look very carefully at the join between the two liquids, and you'll see tiny white strands and filaments forming.

现在，你需要非常仔细地观察这两种液体之间的连接处，你会看到微小的白色链状和细丝形成物。