riddle
名词 riddle:
a difficult problem
同义词:conundrum, enigma, brain-teaser
a coarse sieve (as for gravel)
动词 riddle:
pierce with many holes
set a difficult problem or riddle
separate with a riddle, as grain from chaff
同义词:screen
spread or diffuse through
同义词:permeate, pervade, penetrate, interpenetrate, diffuse, imbue
speak in riddles
explain a riddle