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1·Delivery is free of charge.

免费送货。《牛津词典》

2·Tickets are available free of charge from the school.

学校有免费票。《牛津词典》

3·The leaflet is available free of charge from post offices.

小册子可免费向邮局索取。《柯林斯英汉双解大词典》

4·He offered to fix bikes free of charge for anyone who needed it.

他主动提出为有需要的人免费修理自行车。

5·In fact it is free of charge at the weekend.

事实上，在周末这是免费的。

6·Museum's special exhibition area will now be free of charge.

博物馆的特别展览区现在免费开放。

7·NASA offers to launch CubeSats free of charge for educational and research purposes.

美国宇航局免费发射立方体卫星以供教育和研究之用。

8·B: Could I have this sample free of charge?

b：这样品可以免费送我吗？

9·Their after-sales services are free of charge.

他们的售后服务免费。

10·The plugin is free of charge to licensed RUP users.

插件可用为RUP的用户免费使用。