声母R组合
re ru rao ruo rui rong rang run rou ran ruan ren reng ri reng ruan run rang ruo rou re ru rui ren ran rao rong ri ruan ren ran re rao rong ruo run ru rou reng rui rang ri rong rui rao reng ruan rou ru ren ruo re ri run ran rang ran rui rang ri reng ruo re rou ren rao ruan rong ru run
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