以下为句子列表：
英文: Barriers to the free flow of goods and services, labour and capital are being pulled down around the world, aided by huge improvements in communications and transport.
中文: 货物、服务、劳动力和资本自由流动的壁垒在全球范围内被打破，辅以沟通手段和物流产业的显著进步。
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英文: However, for the existence of the local protectionism, it is difficult for the free flow of goods and services to come true.
中文: 但由于地区间存在的保护主义，商品和服务的自由流通往往难以实现。
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