agent

n.代理人；代理商；产生作用的人或事物

afterthought, afterward, afterward(s), afterwards, again, against, agape, agate, age, age of consent, age-group (also age-bracket), age-old, aged, ageing, ageing (also aging), ageism (also agism), ageless, agelong, agency, agenda, agent provocateur, agglomerate, agglomeration, agglutinate, agglutination, agglutinative, aggrandize, aggrandize, aggrandise, aggrandizement, -isement, aggravate, aggravated, aggravating, aggravation, aggregate, aggregation, aggression, aggressive, aggressively, aggressiveness, aggressor,