portsn.端口名词port的复数形式portn.港口Porthole livebearer花鱂port sill structure小炉底结构port town logistics港市物流porting arrangement进排气口排列,气口布置port characteristic端口特点port's productivity美沙酮, 美散痛, 非那酮, 阿米酮[镇痛药]port of exportation[经] 输出港Port of Lianyungang连云港port charges inward入港费Portobello mushroom褐蘑菇