There was a lot of physics going on, but we didn't know a whole lot about atomic structure back in those days.

物理学在迅速发展，但在这之前并没有人对,原子结构有很全面的了解。

麻省理工公开课 - 固态化学导论课程节选

and so on, in the way that he had in those early days."

等等，用他们那时候的方式说“

耶鲁公开课 - 1945年后的美国小说课程节选

So, these are some of the controversies that arise these days from cost-benefit analysis, especially those that involve placing a dollar value on everything to be added up.

以上即为近来对成本效益分析,引发的一些争论，尤其是其中那些,认为可以用金钱衡量一切的观点。

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Other days you have more normal intake, or you might be making up for the deficit the previous day and you might have more; and so which of those particular days gets chosen determines a lot on inferences made about a person's overall diet.

有些天你可能吃的比平时多,可以弥补前些天少吃的东西,甚至还要更多,这些特定日子的选择,对推断人的整体饮食,影响很大

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