In a study, researchers gave three groups of six-year-old children a difficult task to complete on a computer.
在一项研究中，研究人员给三组六岁的儿童安排了一项困难的任务，让他们在电脑上完成。
A new study has found that most three-year-old children can remember a lot of what happened to them a year earlier, and these memories are still clear while they are 5 and 6, but by the time they are over 7, these memories become weaker rapidly.
一项新的研究发现，大多数三岁的孩子都能记得很多一年前发生在他们身上的事情，在他们5岁到6岁的时候，这些记忆仍然清晰，但当他们超过7岁时，这些记忆就会迅速变弱。
One famous experiment in the 1960s involved 3- to 6-year-old children.
20世纪60年代，在3到6岁的儿童中开展了一项著名实验。
Urban-rural differences in dental caries of 5-year old children in Scotland.
《苏格兰五岁儿童龋齿的城乡差异》，凯特·a·列文等，爱丁堡大学。
B: Yes, it's said that the average IQ of dogs is as high as two-year old children.
是的，据说狗的平均智商跟2岁的儿童一样高。
They are five to twelve-year-old children from the neighboring shantytown - home to the working class.
他们是来自邻近棚户区五至十二岁的小孩，棚户区是工人阶层的聚居地。
Every three years the OECD tests the academic abilities of 15-year-old children in its member states and some other countries.
经合组织的调查每三年进行一次，考察其15周岁的孩子的学习能力，这些孩子来自成员国及一些其他国家。
One of the best parts of going this summer was that our now 3 and 6 year old children could really enjoy it, and make memories there.
这个夏天最棒的部分之一就是我们3岁和6岁的孩子们也可以玩的开心，留下美好的回忆。
A law office draws up papers detailing how eight - and ten-year-old children should be cared for if both of their parents should be seized.
某律师事务所拟定了一些文件详细说明了，如果父母双方被捕捉的话，应如何照顾好其八岁至十岁的小孩的问题。
The study tested the IQ of a group of 8, 000 10-year-old children, and then their diets were assessed 20 years later, when the subjects were 30 years old.
研究测试了一组8000个10岁的小孩的智商，20年后再评估他们的饮食，那时他们已是30岁了。
In 2004, the parents of 171 nine-year-old children answered survey questions regarding their perceptions of the physical and social neighborhood environment.
在2004年，171个9岁大儿童的父母回答了一份关于他们对于体育活动和周围社会环境评价的调查问卷。
Most of the 11 and 12-year-old children questioned thought it was wrong to be violent but agreed that if a wife had not made the tea on time it might be acceptable to push her.
接受调查者为11—12岁的学童，其中多数人认为家庭暴力不可取，但他们认为，如果妻子没能按时准备好茶点，丈夫对她拳脚相加的行为是可以接受的。
The new study included 3-year-old children who were subjected to different harmless, but stress-inducing, situations, such as causing them to become slightly nervous or frustrated.
在这项新的研究中，三岁的儿童处于对他们几种对他们无害但是有一定压力的环境，使得他们产生轻微的紧张或沮丧。
At around 4-years-old children are starting to understand that we don't live out there in the world, we actually create a model of the world in our heads, a model that can easily be wrong.
4岁左右，孩子们开始理解我们并不是生活在一个绝对的世界中，实际上我们在自己的脑袋里建造了一个自己的世界模型，而这个模型很容易就会出错。
Having a lot of children is a way of insuring themselves against loneliness in old age.
养很多孩子是他们预防老年孤寂的一种办法。
Children don't complete their set of 20 baby teeth until they are two to three years old.
孩子到两三岁时才长齐20颗乳牙。
Give your old toys or clothes to a charity that helps sick children or poor people.
把你的旧玩具或旧衣服捐给帮助生病的孩子或穷人的慈善机构吧。
The author George Comstock suggested that less than a quarter of children between the ages of six and eight years old understood standard disclaimers used in many toy advertisements.
作者乔治·康斯托克指出，在6岁至8岁的儿童中，能够理解许多玩具广告中使用的标准免责声明的人数不到四分之一。
Under the old system in America, a mother was supposed to stay home and take care of her children.
在美国旧的社会体制下，母亲应该待在家里照顾孩子。
For some people, having a lot of children is a way of insuring themselves against loneliness in old age.
对一些人来说，养育比较多的孩子是一种保障自己不会老年孤寂的办法。
The old woman, however, nodded her head, and said: "Oh, you dear children, who has brought you here?"
不过老太婆点点头，说：“哦，亲爱的孩子们，谁把你们带到这儿来的？”
The document concludes that the high risk of infant, child, and maternal mortality is associated with pregnancies where mothers are too young, too old, or have already had several children.
该文件的结论是，婴儿、儿童和产妇死亡率高的风险与母亲年龄太小、太大或已经有几个孩子的怀孕有关。
In the past, people liked to have a lot of children because they counted on their children to support them when they grew old.
以前，人们喜欢生很多孩子，因为他们指望着他们的孩子给他们养老。
When they are six or seven years old, many children leave school to work in the fields or at home.
当他们六、七岁的时候，许多孩子离开学校去田里或在家里干活。
It is a tale which holds children from play, and old men from the chimney corner.
这是一个让孩子们不敢玩耍，让老人不敢呆在烟囱角落的故事。
When their children lived far away from them , these old people felt cut off from the world.
当孩子们住得离他们很远的时候，这些老人感到与世界隔绝了。
When the children lived far away from them, these old people felt cut off from the world.
当孩子住得离父母很远时，老人们觉得与世隔绝了。
When their children lived far away from them, these old people felt cut off from the world.
那时候孩子们住得很远，这些老人感到与世隔离了。
When their children lived far away from them, these old people felt cut off from the world.
那时候孩子们住得很远，这些老人感到与世隔离了。
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