The Silk Road was more than just a path along which silk was exported
^^^^^
from China.
请问一下，along 是从which后面提到前面(的那个文法)吗?!
如果是，请问他原本是跟在后面哪个字后！！ exported 吗?!

原本是修饰动词词组 [export <silk> (from China)]Silk was [[exported [along the path]] from China]或 [[exported [from China]] [along the path]]