1) There is something wrong with my stomach.
是我肚子疼。
2) a pain in my innards
我肚子疼.
3) I have a pain in my abdomen
我肚子疼
4) I have a headache and a stomachache.
我头疼,肚子疼。
5) I have a bad stomachache.
我肚子疼得厉害。
参考词条