博文
Even PBS can make a mistake (rated R50)
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Rating R50 for this video is invented by me, which means do not watch this program unless you are at least 50 years old.
What can you learn from watching this video? HOW to lie without showing any guilty emotion.
Also I learned that Ping FU’s major in college was Chinese, not English. Thank goodness.
http://video.pbs.org/video/2330983908
https://blog.sciencenet.cn/blog-306792-661090.html
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