Some outlets are even available for walk in viewing. Fundamentals Explained
The rhyming conventions of the new verse had been codified in the rime dictionary called the Zhongyuan Yinyun (1324). A radical departure from the rime table tradition that had developed above the previous centuries, this dictionary consists of a wealth of knowledge over the phonology of Aged Mandarin. Further resources tend to be the 'Phags-pa scr