知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 In 1951, the British Board of Film Censors released the X certification to indicate a film was "particularly graphic." Though this originally referred to violence and poor language along with sexual intercourse, "X-rated" was co-opted by the porn industry and is also now shorthand for sexually https://coingenius.news/what-dogecoin-teaches-us-about-the-future-of-finance/