Vocab InfoA19 Noun一直線(いっちょくせん)straight lineDetailsExamples一直線straight lineDetailsExamplesDictionary DefinitionCommonNoun1. straight lineAll Forms一直線 【いっちょくせん】DetailsAudioPlayExamplesThere are no sentences available for this contentHold tight, context sentences are coming soon!Self-Study SentencesStudy your own way!Add sentences and study them alongside Bunpro sentences.Try Bunpro