And eventually, the polypeptide chain will form into the protein.

最终，多肽链将形成蛋白质。

This means that their RNA is actually mRNA, and the host cell ribosomes use this mRNA to make a long polyprotein chain, which is then broken into smaller pieces by viral proteases.

意味着它们的RNA其实就是RNA；宿主细胞中的核糖体可以用RNA造一条长多肽链，随后被病毒蛋白酶分解成小片段。

These zymogens are normally activated by proteases which cleave off a polypeptide chain, which is kind of like pulling the pin on a grenade.

酶原通过蛋白酶被激活，蛋白酶会将一条多肽链切去，有点像拉手榴弹的保险栓。

The polypeptide chain is formed, and will eventually fold into the required protein.

多肽链形成，最终会折叠成所需的蛋白质。

The ribosome then sticks amino acids together to make a polypeptide chain, following the order of amino acids as coded for, by the mRNA.

然后核糖体将氨基酸粘在一起，形成多肽链，遵循 mRNA 编码的氨基酸顺序。