autumn

n.秋；秋季；成熟期，渐衰期

autocratic, autocratically, autocross, Autocue, autograph, automat, automate, automatic, automatic pilot, automatic transmission, automatically, automation, automaton, automobile, automotive, autonomous, autonomously, autonomy, autopsy, autostrada, autumnal, auxiliary, AV, avail, avail oneself of, availability, available, avalanche, avant-garde, avarice, avaricious, avariciously, avdp, Ave, avenge, avenger, avenging, avenue, aver, average,