我吃了太多的苹果，所以胃部痛。

My stomach hurts because I have eaten too much apples.

youdao

肠胃炎 肠胃炎是指小肠及胃发炎， 主要是由于进食或饮用受细菌、 病毒或毒素所沾染的食物或饮水而引起，常见徵状可能包括恶 心、呕吐、腹泻及胃部痛性痉孪。

Dear Patient: GASTROENTERITIS Gastroenteritis means inflammation of the stomach and intestines. It may be caused by bacteria, virus or by irritation caused by toxins in food or drink.

youdao

猪流感能引起发烧，头痛，肌肉疼痛，咳嗽，喉咙痛和胃部的症状。

Swine flu can cause fever, head and muscle pain, cough, sore throat and stomach problems.

youdao