上面两个案例的推广方法，在我以前的推广文章其实也提过，今天只是换种形式和角度写了出来。
Two cases above, the promotion of methods to promote my previous article also mentioned a matter of fact, today only for the perspective of form and wrote out.
这只是我听说的啊，以前也没人提过，我也没法确认是不是真的。
That's just something I've heard though, and it's been mentioned here before, I have no way of confirming it.
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