用英语说出他是谁怎么说

To say in Engpsh who he is, you can use a sentence pke "He is [name/description/identity]." For example:

"He is my colleague."
"He is the President of the United States."
"He is a kind and generous person."

You can also use a pronoun to refer to him, such as "he" or "him," and provide more information about him using adjectives or noun phrases. For example:

"He is a talented musician."
"He is a dedicated teacher."
"He is an experienced businessman."