词汇辨析
1.N-COUNT An agent is a person who looks after someone elses business affairs or does business on their behalf. 代理商
例：You are buying direct, rather than through an agent.
你在直接购买，而不是通过代理商购买。
2. see also travel agent
3.N-COUNT An agent in the arts world is a person who gets work for an actor or musician, or who sells the work of a writer to publishers. 经纪人
例：My literary agent thinks it is not unreasonable to expect $500,000 in total.
我的文学经纪人认为预期总共50万美元并非不合情理。
4.N-COUNT An agent is a person who works for a countrys secret service. 间谍
例：All these years hes been an agent for the East.
这些年来他一直为东方国家做间谍。
5.N-COUNT A chemical that has a particular effect or is used for a particular purpose can be referred to as a particular kind of agent. 剂
例：...the bleaching agent in white flour.
白面粉中的漂白剂。
常见用法
用作名词
I have been instructed by my agent that you still owe me 100 pounds.
我的代理人通知我，你还欠我100磅。
The agent priced the house at the right level for the market.
代理商按市场价格给这所房子定了价。
This is a chemical agent that destroys plants or inhibits their growth.
这是一种能除草或抑制其生长的化学药剂。
The officer inspired the secret agent to murder the president .
这个军官鼓动这个特工人员去谋杀总统。