单词	obtuse
释义	obtuseob‧tuse /əbˈtjuːs $ -ˈtuːs/ adjective formal Word Origin WORD ORIGINobtuse Origin: 1500-1600 Latin obtusus ‘blunt’, from obtundere ‘to beat against, make blunt’ Examples EXAMPLES FROM OTHER DICTIONARIES Maybe I'm being obtuse, but I don't understand what you're so upset about. EXAMPLES FROM THE CORPUS Even the deeply obtuse can be seized by kamikaze zeal. He is a renowned and honourable man, but with regard to this matter he is either being naive or obtuse. Heather tried to be as obtuse as she could. How today's youngsters are obtuse! The oral shield is rhombic but often with an obtuse proximal angle and a convex distal edge. The oral shields is a rounded pentagonal with an obtuse or slightly rounded proximal angle. The ventral arm plates are wider than long, pentagonal with an obtuse proximal angle and a slightly convex distal edge. slow to understand things, in a way that is annoying:  ‘But why?’ said Charles, being deliberately obtuse.—obtuseness noun [uncountable]
随便看	divan dive dive-bomb dive-bomber diver diverge divergence divergent diverse diversely diversification diversify diversion diversionary diversity divert diverting divest timer times time-saver time-saving timescale Times Education Supplement, The timeserver

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