充值的英文：
recharge
top up

recharge是什么意思：
v. 再充电；休整；再装填；再袭击；再控告

The cell is reversible and is readily recharged.
电池可逆，并容易重新充电。

They recharged the enemy at dawn.
破晓时他们再次突袭敌人。

Our troops recharged to the front.
我们的部队再次向前线猛冲。

The driver was recharged with speeding.
这位司机又被指控超速行驶。

The soldiers recharged their guns and prepared to fire.
士兵们把枪再装上子弹准备射击。