喜马拉雅山脉的长度超过了3000千米，是中国真正意义上的长城。

A.The length of the Himalayas is over 3000 kilometres long and they are the Great Wall in the true sense of China.

B.Over 3000 kilometres long, the Himalayas are China's real Great Wall.

正确答案：Over 3000 kilometres long, the Himalayas are China's real Great Wall.