甲乙， こうおつ

1. first and second, A and B 2. superiority and (or) inferiority, distinction (in quality), discernment, discrimination

tbd

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音读: カン   コウ  

训读:きのえ  

日检:1 grade:8 笔画数:5 部首:102

音读: イツ   オツ  

训读:おと-  きのと  

日检:1 grade:8 笔画数:1 部首:5