【实用口语】“及时行乐”怎么说？

carpe diem    /ˌkɑː.peɪˈdiː.em/

This is a Latin expression meaning "seize the day", used for saying that people should enjoy the present rather than worrying about the future
(拉丁语)抓住今天，及时行乐

例如：

I may as well have dessert - carpe diem, right?

不如我来个甜点，及时行乐嘛，对不对?

The carpe diem spirit that prevails during wartime.

战争期间及时行乐的情绪非常普遍。