畳の上の水練

たたみのうえのすいれん

useless book learning; knowing the theory but being unable to put it into practice; practising swimming on a tatami mat

Meanings

  1. Noun

    useless book learning; knowing the theory but being unable to put it into practice; practising swimming on a tatami matIdiomHumorous

Example sentences

  • コンピューターのマニュアルを読よむだけでは所詮しょせん畳たたみの上うえの水練すいれんだ。

    Just reading a computer manual is like practicing swimming on dry land.