Well, ethene based polymers form through a process called addition polymerization.

好吧，基于乙的聚合物是通过加聚的过的。

And the simplest of those is ethene, also known as ethylene.

其中最简单的是乙， 也乙。

That ethene is sometimes called ethylene.

乙有时乙。

Well the same thing goes for the ethene functional group, which is called a vinyl group.

同样的事情也适用于乙官能团， 它乙基。

And, that a huge variety of polymers is based on the addition reaction of ethene based monomers, including Teflon.

而且，种类繁多的聚合物都是基于乙基单体的加反应， 包括聚四氟乙。

The molecule itself is now a newly formed free radical, and it attack another nearby pi bond, joining with another molecule of ethene, forming another radical.

该分子本身现在是一个新的自由基，它攻击附近的另一个 pi 键， 与另一个乙分子结合， 另一个自由基。