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问题: 高手请帮个忙,一小句经济学的英译汉

An economy is producing effciently when it cannot make anyone economically better off without making someone else worse off.

解答:

An economy is producing effciently when it cannot make anyone economically better off without making someone else worse off.
经济就是在不能改善所有人的经济境况的同时也不使别人更加贫困的情况下,实现有效率地生产。(供参考)