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.

youdao

它帮助了450万名儿童，让他们都能够上学，还建了18992所希望小学。

It has aided 4.5 million children to go to schools and it has built 18,992 Hope Primary Schools.

youdao

希望工程为儿童的教育和健康做出了重要的贡献。

Project Hope has made important contributions to both the education and the health of children.

youdao

So, you want to give it to them because the biology of children is different than adults, and so you need to make sure it works in that population.

你希望将疫苗分发给孩子们,因为儿童与成人在生物学上不尽相同,要确保疫苗对儿童有效

耶鲁公开课 - 生物医学工程探索课程节选