But what this lets you do is gives you that all-important traction, and counter-traction, so that you can dissect, so that you can sew, so that you can do all the things that you need to do, all the surgical tasks.
但让你做的 是给你所有必要的牵引， 反向牵引， 这样你能够解剖、能够缝合， 你可以做所有你需要做的事， 所有的手术工作。