agent

agent

名词 agent:

an active and efficient cause; capable of producing a certain effect

a substance that exerts some force or effect

a representative who acts on behalf of other persons or organizations

a businessman who buys or sells for another in exchange for a commission

同义词：factor, broker

any agent or representative of a federal agency or bureau

同义词：federal agent

the semantic role of the animate entity that instigates or causes the happening denoted by the verb in the clause

同义词：agentive role