n. a particularly baffling problem that is said to have a correct solution
n. a game that tests your ingenuity
v. be uncertain about; think about without fully understanding or being able to decide
n. 难题, 迷惑
vt. 使困惑, 使为难
vi. 迷惑, 苦思
1. I enjoy solving a jigsaw puzzle on weekends.
我喜欢在周末拼拼图。
2. The mystery book was a real puzzle to me.
这本悬疑书对我来说真是个谜。
3. Can you help me with this math puzzle?
你能帮我解决这个数学难题吗？