べんきょう にわか勉強 LinksSentence search for にわか勉強Sentence search for にわかべんきょうSentence search for 俄か勉強Sentence search for 俄勉強Kanji details for 勉 and 強Edit in JMdict Noun1. crammingOther forms俄か勉強 【にわかべんきょう】、俄勉強 【にわかべんきょう】 Discussions Log in to talk about this word.