毫无疑问，一个没有先进的运输系统的社会仍然是一个原始落后的社会。
There is no doubt that a society without an advanced transportation system remains primitive.
毫无疑问，一个没有先进的运输系统的社会仍然是一个原始落后的社会。
There is no doubt that a society without an advanced transportation system remains primitive.
