The only thing anyone was trying to find out is what percentage of Zambian children are vaccinated, and this is the data, collected on paper over weeks, from a single district, which is something like a county in the United States.
我们唯一想知道的事 只是有多少百分比的赞比亚儿童注射过疫苗， 这就是在几周里收集到纸上的数据， 仅仅是一个地区，有点像是我们在美国所说的 一个县。