词语

如兄如弟情如兄弟。比喻彼此亲密无间。例孔子尝过郑与子产如兄如弟。——《史记郑世家》英act towards one another like brothers and sisters;

如弟旧时结拜的兄弟年长的叫如兄，年幼的叫如弟。英sworn brother;