Menstruation (a period) is a major stage of puberty in girls; it's one of the many physical signs that a girl is turning into a woman.

月经（例假）的来到是女孩青春期中经历的一个重要阶段；它是女孩变为女人的众多生理变化之一。

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It's funny that a girl called Ivory should be living in a street by the name of Elephant.

好玩，一个叫象牙的女孩住在一条叫大象的街上。

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But he adds, "It is not acceptable that a girl at the age of 10 is giving birth to a baby."

但是，他补充说，“一个女孩10岁就生了一个孩子这是无法接受的事情。”

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Eddie has trouble accepting that she is no longer a little girl, but has become a beautiful woman.

VOA: special.2010.03.12

Then news came that Dean was out of reform school and was coming to New York for the first time; also there was talk that he had just married a girl called Marylou.

然后消息传来说安被寄宿学校开除了,将第一次来纽约;,还有传言说他刚和一个叫玛丽露的姑娘结婚了。

耶鲁公开课 - 1945年后的美国小说课程节选

Let's say that your brother who you are really close to is dating a girl that is not telling him the truth.

假设你有个关系非常亲密的哥哥，他正和一个女孩谈恋爱，但这女孩却并没有以诚相待。

The thing is 课堂 - SpeakingMax英语口语达人

There is no reason that a girl that's born today should be forced to marry before the age of 18.

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Once I was told that a girl who had done our campaign in the previous season was out, that she was no longer the right person to use.

WSJ: Alber Elbaz | Soapbox

That I misremembered that a girl in college had canceled our date after seeing my wheelchair a first time (when in fact she had long known that I used it) reminded me that I had long seen the shadow of disability where it was not present.

CNN: Is our suffering God's will?