名詞
useless book learning; knowing the theory but not being able to put it into practice; swim practice on a tatami mat
慣用句おどけた言い方
畳水練ばかりで、実戦では全く役に立たない知識ばかりだった。
- It was nothing more than practice in a controlled setting; the knowledge was completely useless in actual combat.
彼の経営理論は畳水練に過ぎず、会社はすぐに倒産してしまった。
- His management theory was nothing more than academic, and the company went bankrupt immediately.