同根派生 vena sublingualis相关词英汉例句Its etiology is assumed to be abnormal embryologic development of the inferior vena cava as a result of atrophy failure of the right subcardinal vein in the lumbar portion.导因为下腔静脉的异常胚胎发展结果导致在腰部的右侧心下静脉未萎缩。vena sublingualis更多例句