聚会愉快，约翰。

Enjoy yourself at the party, John.

Source: Tatoeba

Sentence Composition

1 聚会 jùhuì
  1. party
  2. gathering
  3. to meet
  4. to get together
2 愉快 yúkuài cheerful; happy; pleasant; delighted
3 约翰 Yuēhàn
  1. John (name)
  2. Johan (name)
  3. Johann (name)