| 单词 | brain-teasing | 
| 释义 | > as lemmasbrain-teasing   brain-teasing adj. intellectually challenging; puzzling, thought-provoking. ΚΠ 1828    C. White Almack's Revisited I. iii. 64  				He..had gone through all the brain-teazing squares, cubes, and rhomboids of collegiate instruction. 1911    T. S. Spivey Seven Sons of Ballyhack vii. 102  				What is your latest brain-teasing proposition? 1997    N.Y. Times 5 Dec.  b10/2  				An august math professor..posts special, brain-teasing problems for his students. < as lemmas | 
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