Acne is triggered by puberty hormones.
青春痘是由青春期激素引发的。
Natural weight gain and other changes caused by puberty.
发育期所带来的体重自然增加以及其它变化。
By puberty, the gametes will have further reduced to perhaps three hundred thousand, and only three hundred will ever have the chance of being viable.
到青春期时，这些配子将继续减少到三十万，而且只有三百个具有生育能力。
Firstly, a baby boy may be born with a brain structure that is more feminine than masculine, in other words, a boy who will most likely be gay by puberty.
首先，出生的男婴大脑也许更女性化，而非男性化，换句话说，到了青春期，这个男孩很可能成为同性恋。
By tradition, the young bride is expected to live at home until puberty, when a second ceremony transfers her to her husband.
按照习惯，年轻的新娘在青春期前应该住在家里，到第二次仪式时再把她交给她的丈夫。
For example, the cognitive changes are initiated by physical changes; and, during puberty both physical and emotional development occurs.
例如，认知变化是由身体变化引起的；并且，在青春期内，身体和情感的发育是同时发生的。
Although the most common cause of gynecomastia is puberty, it can sometimes be caused by certain diseases or side effects of some medications.
通常情况下造成男性女乳症的原因是因为青春期发育的关系，但是有时候也可能是因为某些疾病或药物的副作用。
According to a study published in the journal Pediatrics last year, 15 per cent of American girls have begun puberty by age seven.
根据去年《儿科杂志》上的一项研究，百分之十五的美国女孩七岁就开始了青春期。
It showed that the age of puberty had dropped by three and a half months over 15 years, reinforcing the results of the choirboy study.
结果表明，男童的青春期年龄在过去15年已经下降了三年半，再一次印证了对唱诗班男童的研究。
An eight-year old Saudi Arabian girl who was married off by her father to a 58-year-old man has been told she cannot divorce her husband until she reaches puberty.
一位8岁的沙特阿拉伯女孩由父亲许配给一个58岁的男人，女孩被告知在她青春期到来之前，她不能够与她的丈夫离婚。
While new language learning is easiest by age 7, the ability markedly declines after puberty.
7岁之前容易掌握第二语言，青春期之后这种能力明显逐渐下降。
Puberty is characterized by nervousness, sensitivity and irritation.
处于青春期的人往往都易于紧张、敏感和烦躁。
The youngest was the extraordinary case of a six-year-old Peruvian, who suffered precocious puberty and gave birth to a healthy boy by caesarean in 1939.
最小的是在一个特殊的案例中的6岁葡萄牙小女孩，她兽性早熟的影响，1939年通过剖腹产生下了一个健康的小男孩。
Goitre can occur as a normal feature of puberty and pregnancy and is not caused by disease.
甲状腺肿可发生作为一个正常的特点，青春期和怀孕，是不是所造成的疾病。
By measuring the skinfold thickness of triceps and subscapular, this paper studies the effects of physical exercise on body composition of girls during puberty.
通过测量肱三头肌位和肩胛下角位皮褶厚度，分析身体组成，探讨健身运动对青春期女孩发育的影响。
The precocious puberty can be prevented by reducing the absorption of the hormone in the diet, keeping nutrition balanced, carrying on the appropriate movement, etc.
性早熟的预防可以采取减少饮食中激素的摄入、保持营养平衡、进行适度的运动等方法；
A type of schizophrenia, usually starting at puberty, characterized by foolish mannerisms, senseless laughter, delusions, hallucinations, and regressive behavior.
青春期痴呆一种精神分裂症，通常始发于青春期，其特征为举止痴呆、傻笑、妄想、幻觉以及退化的举止。
Boys loses their sensitivity to touch by the time they reach puberty.
男孩子到青春期的时候，失去触觉敏感性。
However, they also accept that the onset of puberty is influenced by factors such as nutrition and exercise, and the effect of a single gene is likely to be relatively small.
然而，他们也认为青春期的开始也受到营养和运动等因素影响，单个基因的影响相对而言还是很小的。
However, they also accept that the onset of puberty is influenced by factors such as nutrition and exercise, and the effect of a single gene is likely to be relatively small.
然而，他们也认为青春期的开始也受到营养和运动等因素影响，单个基因的影响相对而言还是很小的。
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