That influx of sodium then generates graded potentials, which might lead to action potentials, and now your nervous system knows what's going on.

钠的流入会产生分级电位，这可能会导致动作电位，现在你的神经系统知道发生了什么。

And louder sounds move the hair cells more, which generates bigger graded potentials, which in turn generate more frequent action potentials.

声音越大，毛细胞运动得越厉害，从而产生更大的分级电位，进而产生更频繁的动作电位。

For example, salty things are full of positively-charged sodium ions that cause sodium channels in the gustatory cells to open, which generate a graded potential, and spark an action potential.

例如，咸的东西充满带正电荷的钠离子，导致味觉细胞中的钠通道打开，从而产生分级电位并激发动作电位。