快乐主义者

例句：

1. 1. He is a happy-go-lucky person who enjoys life to the fullest.
   他是个乐观的人，享受着生活。
2. 2. She is an optimistic optimist who always looks for the bright side of things.
   她是个乐观的乐观主义者，总是看到事情的光明面。
3. 3. Many people are happy-go-lucky and find joy in small pleasures.
   许多人都是乐天派，从小事中找到快乐。