自由竞争能引用经济学的理论应该就能说明问题了。不过我是外行,觉得这部分阐述用得很好,笑纳了。。。It would be a waste of money if the manufactures with the higher cost still exist in the market under the protection of special regulations when some other firms could do better with the same amount of fund and labor. 是否有点冗长了