This one's also super, super lightweight.

这个也超级，超轻。

It's thought that this super lightweight version of antibodies has evolved independently several times suggesting they are highly effective in these animals.

人们认为，这种超轻型抗体已经独立进化了数次，表明它们对这些动物非常有效。

Well, partly because it's super lightweight, works on any device, and has all these different functions that are not just a messaging service, person to person, but groups and channels and that kind of thing.

嗯，部分原因是它非常轻量级，可以在任何设备上运行， 并且具有所有这些不同的功能， 不仅仅是消息服务、个人对个人，而是群组和频道之类的东西。