- (informal)
a difficult question or problem synonym puzzler难题;困难;棘手的事 - (also poseur)(disapproving)
a person who behaves or dresses in a way that is intended to impress other people and is not sincere 装腔作势的人;装模作样的人 He’s such a poser on the dance floor. 他在舞池里是个装腔作势的人。