鈍る， にぶる， なまる

1. to become blunt, to grow dull 2. to become less capable, to weaken, to falter

tbd

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音读: ドン  

训读:にぶ-  にぶ.る  なまく.ら  にぶ.い  なま.る  

日检:2 grade:8 笔画数:12 部首:167