ulcers FREQ #25875 n. 溃疡, 疡（ulcer的复数） 释义与例句 n. 1. plural of ulcer 相关短语 aphthous ulcers pressure ulcers peptic ulcers Aden ulcers mouth ulcers stomach ulcers cold ulcers Cushing ulcers duodenal ulcers esophageal ulcers gastric ulcers Buruli ulcers decubitus ulcers tropical ulcers peptic ulcer [医] 消化性溃疡