英语逻辑的问题

题目

英语逻辑的问题
Of course,the train isthe most efficient transportation in China.China is a fairly big country withits large number of population and the need of resources such as food andproducts.The train has two advantages.One is cheap,the other is the strongability of load.Thus the train is the best solution to China.For example,billions of Chinese people go home by train at the Spring Festival,where thetrain cannot be replaced by any other transportations.
这么写总感觉第二句和第三局之间有些突兀,但是也感觉正确.有没有必要修改?

答案

语法上确实没错,看这样改一下会不会好一点.
since China is a fairly big country with its large number of population and the need of resources such as food andproducts,there's always a high expendation on transportation.And the train has````