YOLO 你只活一次

YOLO is an acronym for "you only live once". Similar to carpe diem or memento mori, it implies that one should enjoy life, even if that entails taking risks. 

YOLO是“你只活一次”的英文首字母缩写。和拉丁语的“及时行乐”或“死亡警告”相类似，YOLO的寓意是人应该享受人生，即使需要承担风险。

It has become a popular Twitter hashtag. Some youth have said that it is their motto, and actor Zac Efron has a tattoo with the acronym. The phrase and acronym are used in merchandise worn by teenagers such as hats and t-shirts.

YOLO已经成为一个流行的推特标签。有些年轻人称YOLO是自己的座右铭，演员扎克•埃夫隆还刺了一个该缩写的纹身。这一缩写词还被用在青少年穿戴的帽子、T恤等商品上。