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Zhongguo xinwen zhoukan ("Chinese Newsweek"--not affiliated with the U.S. magazine of the same name) also prepared a report (this link is also in Chinese) on Hu's analysis of Einstein's "rebirth" during the Cultural Revolution, a subject that comprises the last chapter of his fantastic book.
People do giggle at cao1 the way they do with gan4 幹 ("to do", in both neutral and sexual meaning), which seems to have the same shock-value as "Fuck", although it is not inherently vulgar: I remember the way a Taiwanese paper's "entertainment news" (yule xinwen 娛樂新聞) section emphasized how the repetition of the "gan character" on Zhang Zhenyue's latest album barred most songs from being played on the radio (those were rap songs, but he also sings inoffensive ballads which do get successful air time).
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