What I did for you was free, gratis, you understand?
我为你所做的都是免费的、不收钱的，你明白吗？
《柯林斯英汉双解大词典》
2
Even these companies have been migrating somewhat towards "free as in beer" (gratis) software for individuals, but they tend to shy away from "free as in speech" (libre).
在某种程度上即便是这些公司已经开始为个人提供免费 软件，但他们大都对真正意义的自由 软件望而却步。
3
Expensive wine subsidizes food in a restaurant, and the original "free lunch" was a gratis meal for anyone who ordered at least one beer in San Francisco saloons in the late 1800s.