Aim To study the effectiveness and reliability of endoscopic varicose vein ligation(EVL)and endoscopic variceal sclerotherapy(EVS).是什么意思_Aim To study the effectiveness and reliability of endoscopic varicose vein ligation(EVL)and endoscopic variceal sclerotherapy(EVS).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句