mickey918

欧洲的货运，装在隆隆驶过的40吨卡车的后面，已经拥堵了阿尔卑斯山谷多年了。
Europe's freight, rumbling through [on the backs of 40-ton lorries],has been clogging the alpine valleys for years.
----主语------ , ----定语（修饰前面主语）---[ ]状语修饰rumble-----,   --------谓语------------------------------.
个人愚见 仅供参考