There is time enough for everything, in the course of the day, if you do but one thing at once; but there is not time enough in the year, if you will do two things at a time.
如果你一次只做一件事，那么一天当中你就有足够的时间去做每件事;但是如果你一次做两件事，一年的时间是不够的。
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Time