"But this has raised concern that O.E.C.D countries were mainly exporting their shortage problem to countries that may have an even greater need for these nurses."
VOA: special.2010.06.07
So actually, the problem with static semantics is you'd like it to catch everything, you don't always get it.
因此实际上,你希望静态语义检查,能捕获所有的错误,但是经常结果不是这样的。
And the problem is, that we want to build this abstract data type, but we'd like to basically know what kind of object is it, and what functions actually belong to it, how do we use them?
然后我对它们运行了这个方法,就是这一小段代码这个方法,这有意义么?,当然没有了,对不对?,因为你知道,当你把两个极坐标,表示的点进行相加运算的时候?
The problem was if you have a basically landlocked power and want to get to the sea, then you'd better have a navy.
问题是,如果你是一个强大的内陆国家,你想使自己的势力到达海洋,最好要有一支海军
d1 2 3 And we can do that just going along, 3 d 1, 2 3, and the problem comes when we get to chromium here, which is instead of what we would expect, 4s23d4 we might expect to see 4 s 2, 3 d 4.
我们能做的就是继续,问题出现了,当我们来到铬元素时,它不是我们预期的那样,我们可能预期。
So, if you have any negative numbers you'd have a problem, right?
所以如果中间有负数就会有问题
If this was a class in which we were going to worry about the general problem of identity across time, this would be a problem we'd have to directly face.
如果我们要讨论的是,贯穿时间的,质的总的问题,我们就需要,直面这个问题。
For Problem Set 1, as you may have seen already, ; what I thought I'd -- I had not, in fact, seen that clip; so I did a quick Googling and that's actually as relevant as the movie really gets I think to computing.
对于习题集1,你们可能已经看过了,事实上,我还没看过这个电影片段;,所以我google了一下,那个实际上是跟,我想要处理的电影是相关的。
Here's another problem that I'd like to solve.
那么我们已经看过了这样的一个例子了。
The big problem life insurance had was people would buy it and they'd pay for several years and eventually they would think, well we didn't die, we're losing all this money, let's just cancel the insurance.
人寿保险的一个主要问题是,人们在购买了若干年保险后会突然觉得,我们并没有死,保费白花了,我们干脆把保险取消好了
It would be a terrible-- it would be a problem all over the world because the damage would extend around the world; but, you'd be much better off if you were on the other side of the world, not where it hit.
那将很严重-,那将是世界范围内的严重问题,因为破坏范围可能扩大到世界各地;,但是,如果你在世界的另一边,而不是撞击地点,就会好得多。
I don't care how you do it on exams or on problem sets, but you do need to be aware that the 3 d once filled is lower in energy than the 4 s, and the reason you need to be aware of that is if you're asked for the electron configuration now of the titanium ion.
我不关心你们在考试或者,问题集中如何做它,但是你们的确需要知道3d一旦被填充,它的能量是小于4s的,你们需要知道这个的原因,是如果你现在被要求,写出钛离子的电子构型。
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