Experts hesitate to put a figure on the number of toys children should have, but many believe two dozen is enough for children of preschool age.
专家们对儿童应该拥有的玩具数量还不能给出具体数字，但很多人认为24个对于学龄前儿童来说足够了。
This unintended impact has to do with the portrayal of conflict in media and how preschool-age children comprehend that conflict.
这种意想不到的影响，与媒体对冲突的描述、以及学龄前儿童对这种冲突的理解有关。
Preschool was available to children between the ages of three and six; it was obligatory from age five.
三至六岁之间的孩子需接受学前教育。从五岁开始教育是强制性的。
Strategies for anaemia control in preschool-age children in sub-Saharan Africa should be tailored to local conditions, taking into account the specific etiology and prevalence of anaemia.
撒哈拉以南非洲地区学龄前儿童中的贫血症控制策略应该适合当地条件，考虑贫血症的特定病因和患病情况。
A short course of oral prednisolone is widely used to treat preschool children with wheezing who present to a hospital, but there is conflicting evidence regarding its efficacy in this age group.
治疗前来医院就诊的患有喘鸣的学龄前儿童广泛应用短期口服泼尼松治疗，但是，关于这个年龄组的治疗效果有相反的证据。
Preschool age children who attend day care have a heightened risk of developing respiratory and allergy symptoms, according to results of a study conducted by Swedish researchers.
根据瑞典研究人员的研究结果显示，上托儿所的学龄前儿童，出现呼吸道及过敏症状的机率较高。
The relation between the psychological theory of preschool-age children and executive function is now a hot issue on the study of the psychological theory of children.
学前儿童心理理论和执行功能之间的关系是目前儿童心理理论研究的热点问题。
Results Preschool children of the age about 3 years were easy to have hand-food-mouth disease and offen come to collective infection;
结果手足口病好发于3岁左右学龄前儿童，易发生集体感染；
While the thickness of sebum, age and time span of mother pregnancy, the way of delivery and the source of potable water aren't related with the blood pressure in preschool children.
儿童的皮脂厚度、母亲怀孕年龄、怀孕次数、分娩方式及饮水来源等未见其与儿童血压有关。
The children with CHD in plateau region become severe pulmonary arteries pressure in preschool age and have high rate of die young.
高原地区先心病患儿在学龄前形成重度肺动脉高压而夭折率偏高。
But a new study of nearly 9,000 U. s. children found that almost half of preschool-age kids are not getting outside at least once a day with their parents.
但一项新的研究在调查了近9千名美国儿童后发现几乎有一半的学龄前儿童并没有每天被父母带出去玩。
But a new study of nearly 9,000 U. s. children found that almost half of preschool-age kids are not getting outside at least once a day with their parents.
但一项新的研究在调查了近9千名美国儿童后发现几乎有一半的学龄前儿童并没有每天被父母带出去玩。
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