The penis is the outer sex organ of men and of male animals. It is used for sex, and waste water (urine) also leaves the body through it.

The penis Penis 是is the outer sex organ男性和公的動物外部的性器官 of men and of male animals。It它 被used用於 for sex性行為，and而 waste water廢水（urine尿液）also也 leaves the body透過它離開身體 through it。

This is the calm, standard word in medicine, biology, and careful English. Families sometimes use a softer child's word at home. Rude English has many other words; some of them will get you into trouble in class.

This這是 is the calm, standard word一個平靜、標準的用字 in medicine, biology, and careful English在醫學、生物學和講究的英語裡。Families家庭裡 sometimes有時 use a softer child's word at home會在家用比較柔和的兒童用語。Rude English粗俗的英語 has有 many other words很多其他的字；some of them其中一些 will get you into trouble in class在課堂上說出來會讓你惹上麻煩。

Though actually, English did not always use this word. It was taken from Latin in the late 1600s as a school-and-doctor word, and it slowly pushed older English words out of polite talk. Teachers and doctors prefer penis because you can name the body part without joking or whispering.

Though actually不過事實上，English英語 did not always並不是一直都 use this word用這個字。It它 was taken是取自 from Latin拉丁文 in the late 1600s在1600年代晚期，as a school-and-doctor word當作學校和醫生用的字，and而且 it它 slowly慢慢 pushed把較舊的英語字 older English words擠出了 out of polite talk禮貌用語之外。Teachers and doctors老師和醫生 prefer penis比較喜歡用penis because因為 you你 can name可以指稱 the body part這個身體部位 without joking or whispering不用開玩笑或壓低聲音。

By itself it is not a dirty word. In a biology class it is ordinary. Said as a loud joke, it can still make people uncomfortable.

By itself它單獨來看 it is不是 not a dirty word一個下流的字。In a biology class在生物課上 it它 是 is ordinary很平常。Said as a loud joke如果被拿來當作大聲的玩笑講，it它 can still仍然可能 make people uncomfortable讓人不自在。