sworn brother 结拜兄弟；干兄弟；盟兄弟

【例句】
He's my sworn brother.
他是我的结拜兄弟。

I am sworn brother in Miami, United States opened a fingernail their point, the fake fingernails so beautiful, very good business!
我结拜兄弟在美国，迈阿密自己开了一家手指甲点，那些假手指甲好漂亮，生意很好的！