created sense approved 亲兄弟/親兄弟 · qīnxiōngdì · biological brothers
亲兄弟 / 親兄弟
qīnxiōngdì
biological brothers
brothers born of the same parents, or metaphorically, someone treated with the same closeness and loyalty as a biological brother.
他把我当成他的亲兄弟。
noun