基本解释n.难题；脑筋急转弯同根派生 英汉例句用作名词 (n.)The difficult question tasked my brain.这个难题让我大费脑筋。Peter racked his brain during the test trying to solve the problem.考试时彼得冥思苦想，设法解答难题。The girl is very good at the brain twister game.这个女孩很擅长猜脑筋急转弯的题。