If you say that someone has a devil-may-care attitude, you mean that they seem relaxed and do not seem worried about the consequences of their actions.
例句
I love Italian food and wine and the devil-may-care attitude of the people.我喜欢意大利的食物、美酒和人们那种天塌当被盖的心态。
英英词典释义
Adjective
1. cheerfully irresponsible;
"carefree with his money""freewheeling urban youths""had a harum-scarum youth"
2. marked by a carefree unconventionality or disreputableness;
"a cocktail party given by some...raffish bachelors"- Crary Moore