I'm going to ask you to indulge me while I go back to the beginning and talk about some things that you know but I'm going to go through this pretty rapidly.

我请求你们容许我,从一些,你们已经懂得的知识讲起,不过我只会很快的串讲一下

耶鲁公开课 - 生物医学工程探索课程节选

And then I've got some things that get me back out information about them.

好，一个模板,对于一个点有x坐标，y坐标,半径，角度。

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