抽屜原理 [－屉－－]

Jyutping cau1 tai3 jyun4 lei5
Pinyin chōu tì yuán lǐ

Definitions (Wiktionary)
  1. noun
    pigeonhole principle
    (syn.) 鴿巢原理, 鸽巢原理, 鴿籠原理, 鸽笼原理