youdao

It doesn't cost anything to register, but we do charge for the run.

报名不需要任何费用，但我们对跑步活动收费。

youdao

There is no extra charge for these—just plug in, select the required language and adjust the volume.

这些都不需要额外的费用，只需插入电源，选择所需的语言并调节音量即可。

youdao

Question Box is a service that provides answers free of charge for people who cannot search the Internet directly.

VOA: special.2009.10.12

So for example, that might have a formal charge of negative 1, because to some extent it has gained that much electron density that it now has a formal charge that's negative.

比如，可能它的形式电荷为负一，因为在一定程度上它得到了这么多的共用电子密度,那么它现在就有了负的形式电荷。

麻省理工公开课 - 化学原理课程节选

So we can do this for any final charge we have, if we have a molecule that has a charge of plus 2, then all of the formal charges should add up to plus 2 and so on.

对于任意净电荷的情况,我们都可以这样做，比如假设我们有一个带两个正电荷的分子，那么所有的形式电荷加起来应该等于正二，等等。

麻省理工公开课 - 化学原理课程节选

All the networks are currently wrestling with ways to charge for services on packet networks.

BBC: Graphic

The original complaint against the broker includes a felony charge for causing serious bodily injury.

FORBES: Wall Street Broker Escapes Felony Hit-And-Run Charge

An investment company called Jaguar Financial Services is leading the charge for a complete management makeover.

FORBES: Is It Too Late To Fix Research In Motion?