[C]代理人,代理商; 经纪人 a person whose job is to represent another person, a company, etc.especially one who brings people into touch with other or deals with the business affairs or a person or company
[C]作用者,原动力,动因; 作用剂 a person or thing that works to produce a result
英英释义
Noun:
an active and efficient cause; capable of producing a certain effect;
"their research uncovered new disease agents"
a representative who acts on behalf of other persons or organizations
a substance that exerts some force or effect
a businessman who buys or sells for another in exchange for a commission
any agent or representative of a federal agency or bureau
the semantic role of the animate entity that instigates or causes the happening denoted by the verb in the clause