upset stomach

基本解释

Students showed symptoms of upset stomach and vomiting and were sent to hospital.
学生们集体出现肚子痛、呕吐等症状，已被送往医院治疗。
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Grandma was right when she recommended ginger for an upset stomach — at least for cancer patients.
肚子难受时，奶奶推荐吃姜，这种偏方挺对症，至少对癌症患者挺不错的。
For example, a good bit of chamomile's effectiveness in soothing an upset stomach is due to its volatile oil content, but useful flavonoids and coumarins are also present.
举例来说，很大程度上甘菊在舒缓肚子痛的作用上，是因为它含有这种挥发油，当然有用的黄酮类化合物和香豆素是也其中一个因素。