that signed up or only the poor districts that signed up,

参加了或贫穷的地区参加了
it was really a mix.

情况要更加复杂
What I was able to do--and let me just walk you through this--is

我能够做的是让我领你们看看吧
I was able to look at the year

我能做的是看看
before the school wellness policies went into effect,

在学校健康政策生效的前一年
how many unhealthy a la carte snacks were being sold,

零食的售卖菜单上有多少零食是不健康的
this one's for elementary schools,

这是一所小学的菜单
and before and then after.

政策前的和政策后的
I was able to split up the districts

我能够将那些
that were just using their own personal local school wellness policy,

施行个人校园健康政策的地区区分出来
so that's the local standards yellow line and compare them

将那些地区标准用黄色画起来
to the districts that chose to sign up for the healthy snack,

并将这些地区与签署健康零食