And even when you close the pore -- which neurons can do, they can open and close these pores to generate electrical activity -- even when it's closed, because these ions are so small, they can actually sneak through, a few can sneak through at a time.
甚至当小孔闭合的时候——神经元做得到这点的， 它们可以通过开关这些小孔来产生电活动—— 甚至当孔闭合时，由于这些离子如此之小， 它们实际上可以偷偷地穿过，其中一些还可以同时偷偷地穿过。