这方面常见的和难以克服的障碍是资金短缺、基础设施落后、以及资源有限。
The obstacles of little money, poor infrastructure, and limited resources are as common as they are difficult to overcome.
美国的铁路基础设施落后于许多其他发达国家，尤其是在高铁方面。
Rail infrastructure in the US lags many other developed countries, particularly in terms of high-speed trains.
但是其开发存在缺乏规划、起步晚、基础设施落后、产品屏蔽度大等问题。
However, there still exist some problems such as lack of planning, late starting, backward basic facilities and high coverage of tourism products, etc.
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