的确，当你下次享受懒散的周日而有负罪感，或者丢开该死的工作请假一天时，再想一想。
Indeed, the next time you feel guilty about enjoying a lazy Sunday, or taking a day off from work for the heck of it, think again.
早餐的确是一天中最重要的一顿。
You've probably heard it before, but breakfast really is the most important meal of the day.
就是用这样的办法，通过观察这缓慢的振动和计算一天中的振动次数，卡文迪什计算出了地球的确切的重量。
This could not be otherwise; and from the slowness of a vibration, or from the small number of vibrations in a day, Cavendish computed the real weight of the earth.
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