gratis
adverb /ˈɡrætɪs/, /ˈɡrɑːtɪs/
/ˈɡrætɪs/
- done or given without having to be paid for
免费的；无偿的 - I knew his help wouldn't be given gratis.
我知道他的帮助不会是无偿的。
词源late Middle English: from Latin, contraction of gratiis ‘as a kindness’, from gratia ‘grace, kindness’. - I knew his help wouldn't be given gratis.