拉肚子

bìng rén lā dù zi le

病人拉肚子了。

The patient is sufferring from diarrhea.

wǒ lā dù zi wǒ huái yí zuó tiān chī le bù xīn xiān de dōng xi

我拉肚子，我怀疑昨天吃了不新鲜的东西。

I have diarrhea. I wonder if I ate something bad yesterday.

wǒ méi tù dàn shì lā dù zi le

我没吐，但是拉肚子了。

I didn't puke, but I had diarrhea.