A young person may begin puberty at 8, while another may not start puberty until 14 or 15.

有的轻人可能从 8 岁就开始进入青春期，而有的可能要直等到 14 或 15 岁。

I feel that children's tastes in books change as they reach adolescence.

我觉得孩子们在进入青春期后对书的品味会发生变化。

Now, apparently, it’s not only our hormones that change when we reach adolescence – that’s the age when we start changing into an adult.

显然，我们进入青春期后不仅是体内的荷尔蒙发生改变，我们开始变为成人了。

But a few of them went through puberty early this year, so...

不过其中些孩子早进入了青春期。

Generally, girls tend to enter puberty two years ahead of boys.

般来说，女孩子比男孩子早两进入青春期。

Is there any chance I'll hit puberty in the next few weeks?

我有可能在接下来的几周间进入青春期吗？

It's in between what's written, but there is an inference that our version of Jimmy's mother at a time of him coming a man, you know, hitting puberty and having sort of burgeoning sexuality.

虽然是在字里行间，但有论，我们对吉米的母亲的描述是在他成长为男人的时候，你知道，进入青春期，性征迅速成长。

Children are typically born with an early circadian rhythm, but when they enter puberty, their melatonin and cortisol kick in later, and as a result their bodies react less to light and get sleepy about 2 hours later.

儿童通常出生时昼夜节律较早，但进入青春期后，褪黑激素和皮质醇开始分泌的时间会较晚，因此他们的身体对光线的反应较弱，大约2小时后就会感到困倦。

While the set points for 10-year-old identical twins were the same or very close to one another, they diverged sharply as the twins moved through adolescence and into adulthood, which suggests that genetic predisposition played only a part.

虽然10岁的同卵双胞胎的设定值是相同的，或者非常接近，但随着双胞胎从青春期进入成期，设定值急剧偏离，这表明遗传倾向只起了部分作用。

Professor Sir Stephen O'Rahilly from Cambridge University told the BBC: “It tells the body we're great here, we've got lots of food, so grow quickly, have puberty soon and make lots of babies.”

剑桥大学教授斯蒂芬·奥拉希利爵士告诉 BBC：“这告诉我们的身体，我们在这里很棒，我们有很多食物，所以长得很快，很快就会进入青春期，生很多孩子。”

She says that people who have not reached puberty still have enough muscle and brain plasticity to allow their brain to control their mouth muscles.

她说，尚未进入青春期的人仍然有足够的肌肉和大脑可塑性，让他们的大脑控制他们的口腔肌肉。

It can be a challenge when a child enters into adolescence, so I was thinking... does Lily have any aunts or any other female figures in her life?

孩子进入青春期时可能是挑战，所以我想着莉莉的生活中有没有姑妈或者其他女性长辈出现？

But I was growing toward adolescence and had to admit that Mr Houghton was not the only one with an irresistible spring in his neck.

但是，当我进入青春期，我不得不承认霍顿先生并非唯位脖子被不可抗拒的弹簧所控制的人。

When children reach adolescence, a cascade of hormones are released, causing mood swings, impulsive behavior and an unbelievable amount of eye rolling.

当儿童进入青春期时，会如水库泄洪般分泌荷尔蒙，造成情绪波动、冲动行为与超大量翻白眼行为。

A constitutional delay can resolve on its own with a natural onset of puberty, and does not typically require medical intervention.

体质性延迟可自发缓解并正常进入青春期，通常不需要进行医学干预。

By the time they had reached adolescence, all three sisters had accumulated well over ten thousand hours of specialized practice.

到她们进入青春期时，三姐妹都已经累计进行了超过万小时的专项练习。

A second was when the animals were older-an age roughly equivalent to the period just before adolescence in humans.

第二次是在动物更大点的时候—这龄大致相当于人类进入青春期之前的时期。

Well, I had just begun puberty. It was figuratively and literally one of the hairiest moments of my life.

当时才刚开始进入青春期。所以无论从实际或比喻上来说，那都是我最" 毛" 孩子的段日子。

Nowadays kids grow about 2 inches or so per year from age three until they hit puberty.

现在的孩子从三岁到进入青春期，每大约长2英寸左右。

In general, girls start puberty two years before boys do.

般说来，女孩子比男孩子早 2 进入青春期。