单词	空腔脏器
释义	空腔脏器phr.hollow organ空腔脏器，内脏器官
随便看	principal point error principal point of discussion principal point of photograph principal-point radial principal point triangulation principal polygonometric network principal produce principal product principal profile principal proposition principal quantum principal quantum number principal radius of curvature principal radius of gyration of area principal rafter principal ray principal reaction principal reaction--main reaction principal refractive indices principal register set principal representation principal resonant frequency principal restraint principal result interpreter principal river