You can't run on a full stomach.

饱餐之后不能跑步。

《牛津词典》

You shouldn't exercise on a full stomach.

你不应该吃饱了就运动。

《牛津词典》

Sorry that I cannot go to the airport to pick you up in person on account of stomach ache.

很抱歉我不能亲自去机场接你，因为我肚子痛。

youdao

It is above the stomach, under the ribs on a person's left side.

VOA: special.2009.08.25

Your stomach sinks, you have that sinking feeling in the pit of your stomach, when you get a bad grade on a test.

当你考试考砸的时候,你的胃会垂下去,或者说,会有胃部下垂的感觉

耶鲁公开课 - 死亡课程节选

I mean, think of going out to a nice dinner, you're completely full, your body doesn't really need more calories necessarily, your stomach has had enough, and then the dessert cart comes by, or there are the mints on the way out of the restaurant or something.

我是说,比如出去享用一顿丰盛的大餐,你已经完全吃饱了,你的身体确实不再需要更多的能量,胃也填满了,这时甜品车经过身边,或者在出餐厅时门口时有人给你薄荷糖

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Ms Leggatt told the jury the wounds had healed but she had a large scar on her stomach where she was operated on and scarring on her leg.

BBC: Louise Leggatt

To dig into the soul of the Treme, you have to rely on your stomach.

BBC: New Orleans outside of the French Quarter

Charles Burrows noticed a strange lump on his stomach in the summer of 2005.

FORBES: Magazine Article