you can't move molecules,

你不可能移动
molecules don't spontaneously move

分子不可能自发的
from regions of low concentration to high concentration.

从低浓度区向高浓度区移动
It requires energy and it gets its energy from ATP.

这就需要能量需要ATP供能
This is called the sodium-potassium pump

这就是所谓的钠-钾泵
and it's ubiquitous in cells throughout the body.

广泛存在于全身各处细胞中
It's how cells maintain this low sodium concentration

这也就是细胞如何维持
and high potassium concentration inside.

胞内低钠高钾的秘诀所在
It's because they have these little machines in their membranes

正是由于细胞膜上这些小机器的存在
that are continually pumping sodium out and potassium in.

才可以不断地将钠离子泵出钾离子泵入
Does that make sense?

明白了吗
It's the action of this pump

由于这些泵的活动