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2、 Electricity is an important agent in the life of today、电是今天生活中一项重要的动力。
3、 Rain and sun are the agents which help plants to grow、雨水和太阳是促使植物成长的因素。
4、 I made my assistant my agent while I was abroad、我请我的助手在我出国期间做我的代理人。
5、 My agent has power to sign my name、我的代理人有权代我签字。