mid-15c., "for nothing, freely," from Latin gratis, contraction of gratiis "for thanks," hence, "without recompense, for nothing," ablative of gratiae "thanks," plural of gratia "favor" (see grace (n.)). Meaning "free of charge" is 1540s.
实用例句
1. What I did for you was free, gratis, you understand?
我为你所做的一切都是免费的，无偿的，你明白吗？
来自柯林斯例句
2. I knew his help wouldn't be given gratis.
我知道他的帮助不会是无偿的。
来自《权威词典》
3. David gives the first consultation gratis.
戴维免费提供初次咨询。
来自辞典例句
4. You can get the sample gratis.
你可以免费得到样品.
来自辞典例句
5. We will also arrange for sightseeing in Si'an and the neighbouring area gratis.