短语词组短语marginal effect ulcer 吻合口溃疡marginal ring ulcer of cornea 翻译;边缘性环形角膜溃疡英语stomal ulcer marginal ulcer 吻合口溃疡marginal ulcer of gastroenteric stoma 胃肠吻合口边缘溃疡ulcer marginal 溃疡边缘ulcer marginal mucosal 溃疡边缘粘膜 返回 marginal ulcer