aria

n. 独唱曲，咏叹调

arduous, arduously, are, area, area code (US) dialling code, areca, areca nut (also betel-nut), aren't, arena, arete, argon, argot, arguable, arguably, argue, argument, argumentation, argumentative, argumentatively, argy-bargy, arid, aridity, aridly, aridness, Aries, aright, arise, arisen, aristocracy, aristocrat, aristocratic, aristocratically, Aristotelian, Aristotle, arithmetic, arithmetical, arithmetically, arithmetician, ark, Arkansas,