我们在表达去大小便时，更多的表达就是 go to the toilet/bathroom, 等等类似的表达，那么更为直接的表达怎么说呢，我们一起来看看吧。

poop/poo 拉大便；便便

Mum, I want to do a poo!

妈咪，我想拉屎！

Mum is busy. Do we have to go poo-poo?

妈咪在忙。我们去拉屎吧？

It‘s so gross that you step on dog poo.

好恶心呢，你踩在狗屎上了。

pee/piss 拉小便

My friends pee on the trees!

我朋友往树上尿！

Poop and pee have a great numbers of germs , so we have to wash our hands every time after we go potty.

大小便有很多细菌，因此每次便后我们都必须吸收。

Who has so many cats that pee in your yard?

谁养了一群在你家院子乱尿的猫呢？

I gotta take a piss bad, can I use your head?

我非要小编不可了，我能用下你的头吗？