Objective To investigate the value of fetal echocardiography( F-Echo) in prenatal diagnosis of congenital heart disease( CHD) in fetus.是什么意思_Objective To investigate the value of fetal echocardiography( F-Echo) in prenatal diagnosis of congenital heart disease( CHD) in fetus.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句