At times charged, at times languid.

时而冲锋陷阵，时而萎靡不振。

Those are range, charge time, costs, and then safety.

问题有范围，充电时间，成本和安全。

The airline industry does this using time, charging those that book early less than those that book late.

航空公司会利用时间这样做，对预定较早的人少收一点儿费用。

Because last time, she charged me $100 an hour.

因为上次她收我100美元每小时。

What's the charge this time, Rivers?

这次是什么罪名 里弗斯？

If you have a checking account and the company you work for has direct deposit, many times the bank will not charge you a fee.

如果您有支票账户， 并且您工作的公司有直接存款，很多时候银行不会向您收取费用。

And I was in charge of the video camera every time we went on vacations, so I would collect all these videos and had nothing to do with it.

每次我们去度假时， 我负责摄像机，所以我会收集所有这些视频， 而与它无关。

Yeah, Coulomb's law gives the electrostatic force  as the Coulomb constant times charge 1 times charge 2 all divided by the square of the distance  between centers of charge all times unit vector r.

是的，库仑定律给出的静电力等于库仑常数乘以电荷 1 乘以电荷 2 除以电荷中心之间距离的平方乘以单位矢量 r。

But current is just equal to the number of charged particles passing a given point over a certain amount of time – which we'll call N – times their charge, q, divided by that time, t.

但是电流正好等于在一定时间内通过给定点的带电粒子的数量——我们称之为 N——乘以它们的电荷，q，除以那个时间，t。