And then they alternate in their propulsion, but the patterns are all the same. Almost every organism we've looked at this way -- you'll see next week, I'll give you a hint, there'll be an article coming out that says that really big things like T. rex probably couldn't do this, but you'll see that next week.
它们提供助推的顺序是交替的 但是规律是一样的。几乎所有的动物这样看来 --下周你就能看到--暂且先给个提示， 会有一篇文章登出来说 像霸王龙那样的大家伙可能不会这么动，你下周等着瞧吧