a charge (= a statement accusing someone of doing something wrong or illegal) that someone makes against a person who has made a charge against them

In the heat of the election campaign, charges and countercharges are flying. 在竞选活动的白热化阶段，指控和反指控层出不穷。

Often, when complaints were made, the police brought counter-charges.

a charge (= an attack in which an army suddenly moves forward) intended to stop or oppose a charge by an enemy

When French soldiers charged the enemy line, they met an infantry and cavalry countercharge by Wellington's troops. 当法国士兵冲锋时，他们遇到了威灵顿统帅的步骑兵反击。

to publicly accuse someone of doing something bad after they have accused you of doing something bad

He was charged with a cover-up but the president's supporters counter-charged that his opponents had manufactured a scandal to smear him. 总统被指控掩盖真相，但他的支持者反驳说，对手捏造了丑闻来诽谤他。

to formally or officially accuse someone of committing a crime after you have been officially accused of something

She has counter-charged Stuart with attempted assault. 她反控斯图尔特企图袭击他人。

Should I countercharge in such a situation?

to charge (= attack by suddenly moving forward) at an enemy in order to stop or oppose a charge by them

The cavalry counter-charged. 骑兵反击了。