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3集第3集》

you also have the issue

还有一个问题
of whether the particular twenty-four hours

就是在选取的24小时里
that a person is interviewed

测试者
is representative of their diet overall,

是不是对总体有代表性
because you can imagine

因为你可以想象
how much your food intake varies from day to day.

每天事物的摄入量都是不同的
There will be days when you're very busy,

有些天你可能很忙
you don't have time to eat

没有时间吃东西
and your food intake is lower then normal.

你的食物摄入就比平时少
Other days you have more normal intake,

有些天你可能吃的比平时多
or you might be making up for the deficit the previous day

可以弥补前些天少吃的东西
and you might have more;

甚至还要更多