In criminal cases,suspects who do not have enough money for a lawyer are given one free of charge to represent them.

VOA: special.2009.08.31

We, in fact, borrow oxygen or steal oxygen from the air free of charge.

我们事实上免费从空气中,借或者偷氧气。

麻省理工公开课 - 固态化学导论课程节选

where we could have dinner and it was free of charge, that kind of thing.

我们可以在那里吃晚餐，而且完全免费，诸如此类的。

请支持一下社团小组 - SpeakingMax英语口语达人

Customers who went to a doctor would get their next haircut free of charge.

VOA: special.2010.10.27

ve something like, recent study shows of 30,000 Canadians have gone for other countries for health treatments, even though they got it free of charge in Canada, ve get to pay for it somewhere else, and they go.

有大约，You’,最近调查显示是3万加拿大人,去别的国家,寻求医疗，即使在加拿大有免费的，他们在别处得付费，and，they’,他们还是选择出去。

斯坦福公开课 - 经济学课程节选

He began giving the cells to researchers across the country, free of charge.

VOA: special.2010.07.21

EpiSurveyor is free of charge and can be downloaded onto mobile devices.

VOA: special.2010.05.03