膝をつく， 膝を突く， ひざをつく

1. to fall to one's knees, to go down on one's knees (e.g. to express respect)

tbd

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音读: シツ  

训读:ひざ  

grade:8 笔画数:15 部首:130

音读: トツ   カ  

训读:つ.く  

日检:2 grade:8 笔画数:8 部首:116