英汉词典

1.A high proportion of five-year-olds have teeth in poor condition.

五岁儿童牙齿不健康的比例高。

2.Finland provides three years of maternity leave and subsidized day care to parents, and preschool for all five-year-olds.

芬兰为父母提供3年的产假和日托补贴，并为所有5岁儿童提供学前教育。

3.Maria Droujkova is a founder of Natural Math, and has taught basic calculus concepts to 5-year-olds.

玛丽亚·德鲁伊科娃是“自然数学”的创始人之一，她曾向5岁的儿童教授基础微积分概念。

4.He suggested a link between class size and test results of seven-year-olds.

他建议把7岁儿童的班级大小和考试结果相关联。

5.A quarter of 4-year-olds frequently wet the bed.

4岁的孩子中有1/4经常性尿床。

6.More than a quarter of seven-year-olds cannot add properly.

超过1/4的7岁儿童不会正确地做加法。