老兄
'old chap' (form of address between male friends)
老兵, 老二, 老公, 老虎, 老骥伏枥志在千里, 老家, 姥姥, 老两口, 老年, 老年人, 老牌, 老婆, 老人, 老师, 老是, 老鼠, 老套, 老天爷, 老头, 老挝, 老爷, 老资格, 烙, 络, 落, 酪, 涝, 酪农业, 勒, 乐, 仂, 泐, 鳓, 肋骨, 乐观, 乐趣, 乐园, 了, 缧, 羸,
