二は十つ日かhatsukaday twenty; twenty daysBreakdown of hatsuka十じゅうjuuten二にnitwo〜日にち〜nichiday counterUsages of hatsukaElon.io is an online learning platformWe have hundreds of Japanese lessons and thousands of exercises.Start learning Japanese nowYour questions are stored by us to improve Elon.ioYou've reached your AI usage limitSign up to increase your limit.