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