非常感谢您的耐心阅读，请在下方提供您对本篇帮助的反馈，以便我们持续改进本文。 In 1951, the British Board of Movie Censors released the X certificate to indicate a film was "exceptionally graphic." However this originally referred to violence and undesirable language as well as sexual intercourse, "X-rated" was co-opted with the porn industry and is now shorthand for sexually specific s... https://coingenius.news/how-to-build-a-diversified-copyright-portfolio-coinrabbit/