这个MIT的研究小组现在正在研究如何改善识别与跟踪的算法，目的是为了建立一个扩大的（鼠标操作）命令库。
The MIT group of researchers are now working on improvements to the recognition and tracking algorithms with the aim of building up an expanded command library.
你们应该可以从网站上打印一份，这些笔记中的空白的纸张，不仅仅是为了记忆，而且现在要理解，光电效应是如何工作的。
You should be able to maybe print out a blank copy of those notes from the website not for memorizing them, but now just understanding how the photoelectric effect works.
你们应该可以从网站上打印一份，这些笔记中的空白的纸张，不仅仅是为了记忆，而且现在要理解，光电效应是如何工作的。
You should be able to maybe print out a blank copy of those notes from the website not for memorizing them, but now just understanding how the photoelectric effect works.
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