車輪の再発明
しゃりんのさいはつめいsharinnosaihatsumei
Rare or specialisedExpression
Meanings
Meanings are shown in English (JMdict).

しゃりんのさいはつめいsharinnosaihatsumei
Rare or specialisedExpression
Meanings are shown in English (JMdict).
expression
reinventing the wheel