我肚子疼，所以没去上学。

I had a ___stomach ___ache, so I didn't go to school.

如果你肚子疼，就喝点温水。

If you have a ___stomach ___ache, drink some warm water.

他吃了太多冰淇淋，现在肚子疼。

He ate too much ice cream and now he has a ___stomach ___ache.