It is about four famous writers, namely Ou Yangxun, Yan Zhenqing, Liu Gongquan and Zhao Mengfu. The first three are from the Tang Dynasty, and Zhao Mengfu is from the Yuan Dynasty. If you are talking about hidden peaks and exposed peaks, then you may be talking about Yan Liushi's Wei and Jin Dynasties, or the situation is not over. I don't know what the speaker wants to express in the specific context. Learning Wei and Jin Dynasties, even Yan Liu, who played regular script, was also learning Wei and Jin people's calligraphy. If the situation is not exhaustive, it shows that Yan Liu's calligraphy style is authoritative and implicit, and his brushwork is not extensive or informal. The next sentence should be interpreted as the king of Europe, which inherits the meaning of Zhong You (Wei) and Wang Xizhi (Jin). It seems that what should be said is a meaning, that is, regular script developed from the calligraphy style of Wei and Jin Dynasties. Therefore, it seems more appropriate to study Wei and Jin Dynasties.
Answer over.