| 释义 | 
		 ˈmouth ˌulcer British English, canker sore American English noun [countable]  a sore area in the mouth of people or animals, caused by illness or a disease  口腔溃疡Examples from the Corpusmouth ulcer• Sharp teeth can cause terrible ulcers and anyone who has had a mouth ulcer himself will know what agony they can be.ˈmouth ˌulcer nounChineseSyllable    area mouth  Corpus sore people the in a of  |