extralityn.治外法权
extraadj.额外的n.额外之物;临时演员adv.特别地
extrauterine pregnancy宫外孕
extra office invention非职务发明
extra early-strength超早强
extraposed constituent外位语
extracellular products胞外产物
extracellular fluid.细胞外液
extra-forcing factor外强迫
extra-ocular muscles眼球外肌
extrautefine pregnancy宫外孕
extra district student外地学生