基本解释繼發的同根派生 英汉例句Keywords interventional therapy;echocardiography;pulmonary valve stenosis;patent ductus arteriosus;secondum atrial septal defect;ventricular septal defect; 介入治療;超聲心動圖檢測;肺動脈瓣狹窄;動脈導琯未閉;房間隔缺損;室間隔缺損;