It would be less likely, the idea goes, that cancer cells' trickery could work in 20 altered arrangements.

这种想法认为，癌细胞的诡计不太可能在20种改变的排列中发挥作用。

Now osmosis is this natural process that happens in our bodies -- you know, how our cells work.

渗透作用是发生在我们体内的自然过程——你知道，我们的细胞是如何工作的。

Skeletal muscle fibers are both structurally and functionally separate from each other, meaning that some cells can work while others don't — that's why you can grasp a delicate flower with the same hand that you can use crush a soda can.

骨骼肌纤维在结构和功能上都是相互分离的，这意味着有些细胞可以工作，而有些则不行。这就是为什么你可以用捏碎汽水罐的同一只手去抓一朵精致的花。