请帮我分析此话有无语法错误,Londonbulittheearliestundergroundrailwayin1863withadistanceof394kilometres,whichisalsothelongestrouteintheworld.(which这个从句有无错误?如何改?

Question

请帮我分析此话有无语法错误,
London bulit the earliest underground railway in 1863 with a distance of 394 kilometres,which is also the longest route in the world.
(which 这个从句有无错误?如何改?

Answer 1

没什么大问题 这样地道一点
Early in 1863 ,London bulit an underground railway ,394 kilometres long, which is the longest route in the world.