来自《耶鲁大学开放课程：有关食物的心理学、生物学和政治学 第21集 第21集》
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if we want to study this ripple effect,我想弄明白究竟怎么回事 -
if we want to see what happens?那下一步该做什么 -
Well we could try我们可以 -
to conduct a big large scale NIH study,做一次大规模的国立卫生研究所级的试验 -
NIH National Institutes of Health美国国立卫生研究院 获政府研发经费拨款仅次于国防部 -
we could try to randomize big groups of populations我们可以随机抽取大样本 -
to see what that would happen,来研究到底发生了什么 -
but what if we didn't want to wait?但如果我们不想等呢 -
What if we really wanted to try something如果我们真的想尝试一些 -
that we thought wouldn't hurt at all我们认为完全无害的事物 -
and see what would happen?并观察它的效果呢 -
Here's something that we're starting.这是我们正着手做的事