you can work with institutions,

可以与机构和政府合作
with government to try to create changes.

去做一些改变
You can work from the bottom-up or from the grass roots up

你也可以自下而上从草根做起
in order to create change and both are necessary.

这两种途径都是非常必要的
Real social change happens

当两种力量同时作用的时候
when these two things are happening in sync,

社会就会转变
and then they meet in the middle.

最后两种力量汇聚在一起
It's almost like when the railroads were built in the U.S.,

就像美国刚建铁轨的时候
they started from the east, built toward the Midwest,

他们从东部延伸到中东部
started from the west, built toward the Midwest, and then they met up.

从西部建到中西部最后会合在一起
That's similar to what's happening now with the food arena.

食品领域也是一样的
You see many examples of action that have happened

在国际范围和地区范围内