But investment which relies on the government only is usually restricted by national finance and running monopoly always results in low efficiency, waste and dissatisfying the demands of consumers.

• 但是，政府有限的财力难以满足巨大的社会需求，垄断经营又使铁路运输企业缺乏竞争活力，经营效率低下、浪费严重、不能满足用户的需求，这是世界各国普遍面临的难题。