他乐观开朗用英语怎么说

"Optimistic and outgoing" 是一种常用来形容人物性格乐观开朗的说法。

"Optimistic" 是"乐观"的意思，来自拉丁语"optimus"，意为"最好的"。

"Outgoing" 是"开朗"的意思，来自英语"go out"，意为"外出"。

例句：

He is an optimistic and outgoing person. 他是一个乐观开朗的人。
She has a very outgoing personality and always makes friends easily. 她性格开朗，总是很容易交到朋友。
Despite the difficult situation, he remained optimistic and outgoing. 尽管处境艰难，他仍然保持着乐观开朗的态度。