Excrement is the solid waste that leaves the body through the bowel — what children call poo. It is a stiff, careful word: doctors, biologists, and people trying to be polite-in-a-formal-way use it.

Excrement排泄物 is是 the solid waste that leaves the body through the bowel經由腸道排出體外的固體廢物 — what children call poo小朋友都叫它 poo（便便）。It is這是 a stiff, careful word一個生硬、講究的字: doctors, biologists, and people trying to be polite-in-a-formal-way use it醫生、生物學家，還有想用正式方式委婉表達的人會用它。

In ordinary talk, speakers usually say poo, or poop in more American and childish speech. Medical notes often say faeces.

In ordinary talk在日常口語裡, speakers usually say poo一般人通常說 poo, or poop in more American and childish speech比較美式、孩子氣的說法則是 poop。Medical notes often say faeces醫療紀錄則常寫 faeces。

Though actually, “excrement” can sound either very clean or a little comic, because it is so starched. There is also an old, almost dead sense from a different Latin verb meaning “grow out,” where excrement meant something that grows from the body, like hair or nails. You can ignore that sense unless you are in a very old book.

Though actually不過, "excrement" can sound either very clean or a little comic「excrement」聽起來可能非常乾淨，也可能有點好笑, because it is so starched因為它實在太一本正經了。There is also另外還有 an old, almost dead sense一個古老、幾乎已經消失的用法, from a different Latin verb meaning "grow out,"來自另一個意思是「長出」的拉丁動詞, where excrement meant something that grows from the body, like hair or nails在那個用法裡，excrement 指的是從身體長出來的東西，像頭髮或指甲。You can ignore that sense你可以不用理會那個用法 unless you are in a very old book除非你正在讀非常老的書。

This is not the rude word, and it is not a casual insult; it is the science-and-formality coat for a bathroom fact.

This is not the rude word這不是粗俗的字, and it is not a casual insult也不是隨口罵人的話; it is the science-and-formality coat for a bathroom fact它是把上廁所這件事包上一層科學和正式外衣的說法。