have got a run
eg: I had got a run this morning. I felt sick all day.
have got a run = diarrhea (腹泻，痢疾)
eg: My son has trouble with diarrhea. I have to take him to see a doctor right now.
How terrible! I feel like vomiting and have got a run.
1. 吃了不卫生的食物 —— have something unhealthy
eg: I had got a run because I had something unhealthy yesterday. 我拉肚子是因为昨晚吃了不干净的东西。
2. 喝生水 —— drink unboiled water (unboiled “未煮沸的”)
eg: Don’t drink unboiled water or you will have trouble with diarrhea. 不要喝生水，否则你会拉肚子的。
3. 着凉 —— catch a cold
eg: Be careful! If you catch a cold, you will have trouble with diarrhea. 小心点!如果你着凉了会拉肚子的。