puzzle/'pʌzl/

v. cause sb to feel confused

n.

➊ sth that is difficult to understand or explain

➋ a game that you have to think about hard to solve

v. [T] 使迷惑：His reaction puzzled all of us. 他的反应让我们都迷惑不解。

n. [C]

➊ 难题；令人费解的事；谜：The disease is still a puzzle to scientists. 这种疾病对科学家来说仍然是个难题。

➋ 谜；智力游戏：a crossword puzzle 纵横字谜

◇a book of puzzles for children儿童智力游戏书