It's been encrypted pretty naively, pretty simplistically, but it's actually an English sentence that's been somehow scrambled; but scrambled in a reversible way.

它被天真地，相当简单地加密了，但是它实际上是一个被加密的英语句子,但是加密方式是可逆的。

哈佛公开课 - 计算机科学课程节选

It's usually best to respond in a complete sentence rather than saying yes or no which can be ambiguous.

一般来说，回答最好是完整的句子，而不是简单的模棱两可的“是”或“不是”。

Do you mind 课堂 - SpeakingMax英语口语达人

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。

哈佛公开课 - 计算机科学课程节选

It's a long sentence, but it's one sentence.

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' But really it's not a sentence.

WSJ: Punctuation Nerds Stopped

It's clearly a sentence written by a committee: you can tell that one faction wanted to go with "America can do better" while another favored "Together, we can do better" to get the unity theme in there, so they decided to split the difference.

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