1·The survey covers a representative sample of schools.
调查覆盖了有代表性的一些学校。
—— 《牛津词典》
2·Extracurricular activities reflect the differences in child rearing in the Pew survey, which was of a nationally representative sample of 1,807 parents.
皮尤研究中心对全国范围内具有代表性的1807名父母组成的样本进行了调查，发现课外活动反映了育儿方式的差异。
3·Extracurricular activities reflect the differences in child-rearing in the Pew survey, which was of a nationally representative sample of 1,807 parents.
课外活动反映了皮尤研究中心育儿方式的差异，这是从对全国1807名家长的代表性抽样调查的结果。
4·We have a representative sample.
我们有一个代表性的样品。
5·The survey covers a representative sample of the population.
这次调查包括有代表性的人口样本。
6·A representative sample of manual tests are executed and timed.
一个代表性的手工测试的例子被执行，并记录时间。
7·Not every person with a sniffle need be tested-only a small, representative sample.
不是每个流鼻涕的人都需要接受检查——只要有一小份具有代表性的样本就行了。
8·The findings were based on a representative sample of 1, 398 people over age 18.
研究人员选取了1,398个18岁以上的人作为代表性样本进行研究。
9·The findings were based on a representative sample of 1,398 people over age 18.
研究人员选取了1,398个18岁以上的人作为代表性样本进行研究。
10·Great care was taken to try and get a representative sample of the general population.
受访人群都是经过细心挑选，能够代表大众的。