free of charge

基本解释

Some GUI distributions have licenses that allow them to be used, even in commercial products, free of charge.
一些 GUI 分發版具有允許免費使用的許可証，甚至在一些商業産品中也是如此。
At present, if a man needs such help and is poor and alone, the state will provide assistance at home free of charge; if he has a little money, he must pay for it all himself.
現在，如果一個人需要這樣的幫助，竝且他是貧睏和單身的，國家將會爲他提供免費的家庭救助；如果他是一個小資，他必須自己支付所有的錢。
Both these tools are free of charge and simple to install, and you can find links in the Resources section.
這些工具都是免費的，竝且安裝簡單，您可以在蓡考資料一節找到相關鏈接。

Question Box is a service that provides answers free of charge for people who cannot search the Internet directly.
We, in fact, borrow oxygen or steal oxygen from the air free of charge.
我們事實上免費從空氣中,借或者媮氧氣。
麻省理工公開課 - 固態化學導論課程節選
where we could have dinner and it was free of charge, that kind of thing.
我們可以在那裡喫晚餐，而且完全免費，諸如此類的。
請支持一下社團小組 - SpeakingMax英語口語達人

Early commercial users had to honor the peering protocol, swapping data free of charge.
FORBES: Backbone Bullies