有閒日語
Articles
Vocabulary
Kanji
Practice
Pricing
Articles
Vocabulary
Kanji
Practice
Pricing
こつこつ
こつこつ
kotsukotsu
勤勤懇懇,孜孜不倦;咯噔咯噔
N2
Adverb
★ Core word
Pitch accent
1
Examples
こつこつと研究を続ける
孜孜不倦地持續研究
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