现在我们来描绘一下点的轨迹。
So, now, let's try to paint, actually, the trajectory of a point.
计划里有些主意很好,但是我要你把这个计划拿回去再在上面下点功夫。
There are some good ideas here, but I want you to take it back and do some more work on it.
12点下课了。
Let me give you, I'm going to create, q a polar point, I'm going to call it q, and we'll give it some random values.
让我给大家讲解下,我要去创建,一个极坐标点,然后我会去命名它为,然后我给它赋一些随机的值,好,现在我想知道。
So things can be dangerous. But generally, if you're smart, I think it's a very safe place to live.
因此,危险还是存在的。但大多数情况下,只要你精明点,我认为那儿还是一个非常安全的居住地。
The second one is, a lot of the time, the worst case is the one that happens.
第二点就是,在很多情况下,发生的往往就是最坏的情况。
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