noun🔗Share脑筋急转弯，谜题. A difficult problem or puzzle."The math problem was a real brainteaser, and it took me an hour to solve it. "那个数学题真是个脑筋急转弯，我花了一个小时才解出来。mindentertainmentlogicgameabilitymathChat with AIVocabulary GamePractice Reading
