たたみのうえのすいれん
畳の上の水練
useless book learning; knowing the theory but being unable to put it into practice; practising swimming on a tatami mat
N3Noun
Noun
useless book learning•knowing the theory but being unable to put it into practice•practising swimming on a tatami mat
Example Sentences
コンピューターのマニュアルを読むだけでは所詮畳の上の水練だ。
Just reading a computer manual is like practicing swimming on dry land.