每个给定时间只能有一个当前的焦点所有者。
在给定时间里决定“可行的”和“不可行”的意思。
Decide what it means to be "available" versus "not available" at a given time.
如果你愿意的话,这是在给定时间,行星运动的平面。
If you want, it's the plane in which the motion seems to be going at the given time.
For a couple of reasons. In some ways, this would be nicer, do expected cases, it's going to tell you on average how much you expect to take, but it tends to be hard to compute, because to compute that, you have to know a distribution on input.
关注最快的情况,在某种意义上来说,因为一些原因这样想挺不错的,当我们处理一个给定的问题,计算平均时间的时候,是很难计算的,因为你并不知道输入的分布情况,这些输入会是怎么样的呢?
Nonetheless, in any given week, for the start of that week, you should have done the readings that are listed for that week.
虽然如此,在给定的时间里,在作为开始的那个星期,你必须完成,清单上所列出的那周的任务。
You give me the time and I'll tell you where it is.
给定时间,我就能告诉你它的位移
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