aura

n distinctive atmosphere that seems to surround and be caused by a person or thing （发自某人或某物而环绕其周围的）特殊气氛; 氛围: She always seems to have an aura of happiness about her. 她好像总是喜气洋洋的.

audit, audition, auditor, auditorium, auditory, Aug, auger, aught, augment, augmentation, augmented, augur, augury, August, Augustan, auk, auld lang syne, aunt, Aunt Sally, auntie (also aunty), aural, aurally, aureola, auricular, aurora, auspice, auspices, auspicious, Aussie, austere, austerely, austerity, Australia, Australian, Australian Rules, Austria, Austrian, Austro-, aut(o)-, authentic,