extraadj.额外的n.额外之物;临时演员adv.特别地
Extradural catheter intuba - tton硬膜外导管
extra- statute exception incident犯罪构成
extracorporeal irradiation of lymph淋巴的体外照射
extracorporeal membrane oxygenation体外膜式人工氧合法
extra-huge underground powerhouse特大地下厂房
Extra Low Hardness Urethane Bumpers
extracurricular sporting activities课外体育活动
extramedullary hemotopoiesis tissue髓外造血组织