puzzle
名词 puzzle:
a particularly baffling problem that is said to have a correct solution
同义词:puzzler, mystifier, teaser
a toy that tests your ingenuity
动词 puzzle:
be a mystery or bewildering to
同义词:perplex, vex, stick, get, mystify, baffle, beat, pose, bewilder, flummox, stupefy, nonplus, gravel, amaze, dumbfound
be uncertain about; think about without fully understanding or being able to decide