agent  
noun [ C ] uk/ˈeɪ.dʒənt/ us/ˈeɪ.dʒənt/
  (REPRESENTATIVE)        
 B2 代理人;代理商
a person who acts for or represents another
  Please contact our agent in Spain for further information. 如需更多信息,请联系本公司在西班牙的代理。 
  (演员、艺术家、作家等的)经纪人,代理人
a person who represents an actor, artist, or writer
 - More examples
 - Los Angeles is full of beautiful girls working as waitresses, hoping to be discovered by a movie agent.
 - She has worked as an estate agent among other things.
 - The agent has put a price of £120,000 on our house.
 - The undercover agents went to the rendezvous knowing that it might be a trap.
 - Unhappy tourists have pointed the finger at unhelpful travel agents.
 
  (SPY)      
 B2 特工人员;间谍
someone who works secretly for the government or other organization
  a secret/foreign agent 特工人员/外国间谍 
 Synonyms: operative spy 
See also: secret agent
   (CAUSE)      
 原动力,动因;作用剂
a person or thing that produces a particular effect or change
  a powerful cleaning agent 高效清洁剂 
 a raising agent for cakes 蛋糕发酵剂 
 a clotting agent 凝结剂 
literary He was the agent of their destruction. 是他导致了他们的毁灭。