【各种人际关系】

buddy哥们儿;colleague同事/同僚;confidante闺蜜/红颜知己(女性);intimate至交;mentor导师/指导者;sworn brother结拜兄弟;superior/boss上司/老板;partner搭档;couple情侣;companion同伴;pen pal笔友;comrade-in-arms战友;fellow-apprentice师兄弟;bosom friend知心朋友