他阳光开朗用英语怎么说

"He is sunny and open" 或者 "He has a sunny and open disposition" 可以用来形容一个人阳光开朗。

"Sunny" 是形容词，指阳光充足，高兴的，而 "open" 是形容词，指坦率，坦诚，开放。

举个例子：

"He is always so sunny and open, it's hard not to like him."
"She has a sunny and open disposition, always making friends easily."

这些词语来自英语中。