ulcer
n
open sore containing poisonous matter on the outside of the body or on the surface of an internal organ 溃疡: leg ulcers 腿部溃疡
gastric ulcers 胃溃疡
My mouth has an ulcer. 我的口腔出现了溃疡.
It seems she was in class on Friday afternoon, but no one has seen her since.
好象她星期五还在教室,但从那以后没人看见过她。
It is much cheaper to post or email a long report than to fax it.
邮寄或电子邮递一封长篇报告比传真要便宜得多。
Finding a job is not the same as choosing a job. Many young people end up in a job to which they are not suited. Chance may play a more important part than decision. So here are a few steps to help you think about jobs which you might enjoy doing