roll along 滚动
speed along 快速前进
rush along 冲向
crash along 猛烈撞击
1. The heavy boulder began to cannonball along the steep mountain slope.
那块沉重的巨石开始在陡峭的山坡上急速滚落.
2. He watched the heavy medicine ball cannonball along the gym floor.
他看着那个沉重的药球在健身房的地板上猛冲过去.
A: Look at that heavy rock cannonballing along the hill!
A：看那块大石头在山坡上飞速滚动！
B: It's moving much faster than I expected!
B：它移动的速度比我预想的要快得多！
1) 猛烈地冲过
2) 快速滚动
3) 快速且沉重地移动
1. 快速、猛烈地移动
e.g.
The heavy sphere cannonballed along the icy surface.
那个沉重的球体在冰面上猛烈地滑行。
verb phrase
1. To move in a rapid, forceful, or uncontrolled manner, typically involving heavy or rolling motion.