20世纪60年代，在3到6岁的儿童中开展了一项著名实验。
One famous experiment in the 1960s involved 3- to 6-year-old children.
他写了许多儿童读物，其中近一半是在20世纪90年代出版的。
He wrote many children's books, nearly half of which were published in the 1990s.
19世纪中叶，美国政府采取了一项将印第安儿童美国化的政策，即将印第安儿童赶出他们的家园并且将他们与其文化隔绝。
In the mid-19th century, the US government adopted a policy of Americanising Indian children by removing them from their homes and culture.
研究儿童消费主义的历史学家丹尼尔·库克认为，这其实是上世纪30年代作为服装制造商的一种营销手段流行起来的。
Turns out, according to Daniel Cook, a historian of childhood consumerism, it was popularised as a marketing trick by clothing manufacturers in the 1930s.
例如，二十世纪开始的二十多年中儿童营养状况改善，使今天的老年人比他们的先辈有了更好的人生起点。
Improvements in childhood nutrition in the first quarter of the twentieth century, for example, gave today's elderly people a better start in life than their predecessors.
这位作家也很擅长描写19世纪伦敦贫困儿童的日常生活——他的书让人们更加关心贫困儿童的问题。
The writer was also very good at writing about the everyday lives of poor children in London in the nineteenth century—his book made people care more about the problems of poor children.
在21世纪，儿童仍因不能获得保护他们罹患脊髓灰质炎、麻疹或肺炎疫苗而导致残疾或死亡的这一事实是不能接受的。
It is unacceptable, in the 21st century, that children are disabled or die because they cannot access the vaccines that protect them from polio, measles or pneumonia.
在本世纪最严重的饥荒危机中，在非洲之角，可能已经有29,000名儿童死去了。
In the worst hunger crisis the world has seen this century, in the Horn of Africa, 29, 000 children may already have perished.
在本世纪最严重的饥荒危机中，在非洲之角，可能已经有29,000名儿童死去了。
In the worst hunger crisis the world has seen this century, in the Horn of Africa, 29,000 children may already have perished.
然而，蜂蜜在数世纪以来在一些文化中被当作治疗上呼吸道感染引起的咳嗽的良方，对12个月以上的儿童很安全。
However, honey has been used for centuries in some cultures to treat upper respiratory infection symptoms like cough and is considered to be safe for children over 12 months old.
非洲将消灭这种几个世纪来夺走大批儿童生命的疾病。
Africa can turn a disease that has taken its children for centuries, into a thing of the past.
儿童肥胖症是21世纪最严重的公共卫生挑战之一。
Childhood obesity is one of the most serious public health challenges of the 21st century.
在二十世纪，两千万到一亿人死于大流行性流感，两亿人死于战争和饥荒，还有二十亿人的死因与儿童期本可预防的疾病有关。
The twentieth century saw 20 to 100 million deaths from pandemic flu and 200 million deaths from wars and famine, but 2 billion deaths from preventable childhood causes.
在20世纪六、七十年代，每年都有数百名美国儿童因严重的铅中毒入院治疗，都与接触含铅涂料和汽油有关。
During the 1960s and early 1970s, hundreds of American children were hospitalized each year with severe lead poisoning linked to exposure from lead in paint and gasoline.
Singhal和他们同事自20世纪90年代就跟踪研究涉及两项报告的儿童，当时他们还是新生儿。
Singhal and colleagues followed up children who were involved in two studies from the 1990s when they were newborn babies.
安徒生的作品于上世纪初传入中国，中国儿童至今仍在广泛阅读。
Andersen's works were introduced to China in the early 1900s and are still widely read by Chinese children.
在英国，“学生奶”一直都是备受争议的话题之一，按照规定，五岁以下儿童每日都可获得免费的牛奶，以帮助身体发育，而小学生们自上世纪1971年起就不在享有免费牛奶的优待了。
Under the Nursery Milk scheme, children under five can have a daily third of a pint of free milk in approved daycare facilities. But primary pupils have not had free milk since 1971.
自本世纪伊始，世界就在艾滋病、结核病、疟疾以及造成儿童和孕产妇死亡疾病的药物分配方面取得了巨大进展。
Since the start of this century, the world has made great progress in scaling up the delivery of medicines for AIDS, TB, malaria, and conditions that claim the lives of young children and mothers.
动力厅(EnergyHall)最引人注目的当属19世纪早期出现的第一台蒸汽机车。三楼展品最受儿童喜爱，其中有老式滑翔机，热气球，飞行模拟器等。
The Energy Hall highlights the first steam locomotives of the early 19th century; big with kids are the third floor exhibits, including old gliders, hot-air balloons and flight simulators.
本周，比尔·盖茨宣布，2007年全球儿童死亡人数为1000万人，较半个世纪前减少了一半，这不愧为人类在过去50年当中所取得的最伟大的成就。
Humanity's greatest accomplishment of the past five decades, declared Bill Gates this week, is the reduction in the number of deaths among young children by half, to 10m a year in 2007.
依据《康涅狄格阅读长期追踪计划》的研究成果，每5个人中就有1个人有某种程度的读写困难发生。 该计划跟踪了大约450学龄儿童并于本世纪初年完成了研究报告。
As many as one in five people have dyslexia to some degree, according to the Connecticut Longitudinal Study, a long-term study of about 450 school-age children that concluded in the early 2000s.
即使某种语言是自发产生的，就像二十世纪七十年代在尼加拉瓜聋哑学校的儿童中发生的情况一样，这种语言也会遵循这些模板式的人类语言特征。
Even when a language arises spontaneously, as it did in the 1970s among deaf school children in Nicaragua, it adheres to these stereotypical human language features.
这一情况不禁在某种程度让人想起美国上个世纪80年代对这类案件的处理，这导致了新的立法和寻找失踪儿童的其他努力。
The response has been somewhat reminiscent of the reaction in the U.S. to prominent cases of missing children that sparked new legislation and other efforts in the 1980s to find missing children.
这一情况不禁在某种程度让人想起美国上个世纪80年代对这类案件的处理，这导致了新的立法和寻找失踪儿童的其他努力。
The response has been somewhat reminiscent of the reaction in the U. S. to prominent cases of missing children that sparked new legislation and other efforts in the 1980s to find missing children.
事实上，本世纪中叶全球五岁以下儿童的人口将会下降到4900万，而六十岁以上老年人的数量将会增加到12亿。
Indeed, the global population of children under 5 is expected to fall by 49million as of midcentury, while the number of people over 60 will grow by 1.2billion.
发现保存完好的中世纪儿童大脑。
盖茨强烈希望儿童的死亡率可以减半至500万每年在接下来的20年里，正如在过去的半个世纪所达到的效果一样。
Mr Gates has high hopes that the number of children who die each year can be cut by half, to 5m, within 20 years, just as it was cut by half in the past half-century.
位于岛中心的拉奈市具有十分有趣的地标，其中包括可爱的拉奈儿童剧院以及拉奈旅馆，都是在二十世纪二十年代建立的。
In the center of the island, Lanai City features thoroughly and lovingly restored landmarks, including the lovely Lanai Playhouse and Theater and the charming Hotel Lanai, both dating from the 1920's.
答：自世卫组织20世纪70年代末至儿童生长标准制定之前，世卫组织一直建议使用美国国家健康统计中心的生长参考。
A: Before the Child growth Standards were developed, WHO had been recommending the use of the us National Center for Health Statistics growth references since the late 1970s.
答：自世卫组织20世纪70年代末至儿童生长标准制定之前，世卫组织一直建议使用美国国家健康统计中心的生长参考。
A: Before the Child growth Standards were developed, WHO had been recommending the use of the us National Center for Health Statistics growth references since the late 1970s.
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