So this is trying to reverse them that tradition actually get students in and engaged in the course material.
因此这也是试图将学生,从这种传统中扭转出来,从而使他们能更专注于课堂内容。
Now, suppose I took this two paths, and I took -- couple them together with one the reverse of the other.
其中一条的方向反过来,这是初态,末态,路径1,先冷却。
If you just scramble a sentence, it's pretty useless because the recipients are never going to be able to reverse the process.
如果你只是加密一个句子,这是毫无用处的,因为收件人没法将这个句子,反加密出来。
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