亲爱哥哥英语怎么说

"Dear brother" in English is "dear brother". It comes from the phrase "dear [name]" which is a way to address someone in a polite and affectionate way.

Here are some example sentences and their translations:

"Dear brother, how have you been?" (亲爱的哥哥，你过得怎么样？)
"I wrote a letter to my dear brother" (我给我亲爱的哥哥写了封信)
"Dear brother, I'm so happy to see you" (亲爱的哥哥，看到你我非常高兴)