基本解释[医] 肛门周围的同根派生 英汉例句Keywords loose thread-drawing;circumanal abscess;threaddrawing therapy; 虚挂线引流;肛周脓肿;挂线疗法;circumanal abscess 肛周脓肿circumanal gland 围肛腺circumanal glands 肛腺