DU不是胃潰瘍的縮寫，是十二指腸潰瘍的縮寫，胃潰瘍的縮寫是GU。
例句：
他胃潰瘍有些年了。
He?has?suffered?from?gastric?ulcer?for?some?years.?
他患有糖尿病和胃潰瘍。
He?suffered?from?diabetes?and?gastric?ulcers.?
新工作的壓力使他患上了胃潰瘍。
The?stress?from?the?new?job?caused?him?to?suffer?from?gastric?ulcers.?
這藥治胃潰瘍有特效。
This?medicine?is?especially?effective?for?gastric?ulcers.?
胃酸侵蝕胃內壁引發潰瘍。
Ulcers?occur?when?the?stomach's?natural?acids?eat?into?the?lining?of?the?stomach.