roll-over

The napalm rolled over and down the front of the recessed embrasure.

那一发凝弹滚落到嵌壁枪眼的前方。

My friend explains that troublemaking party animals see how many people can stand on the deck of an unfortunate boat and eventually they submerge it -- the canal equivalent of rolling over a car.

我的朋友解释说，那些参派对的捣蛋鬼想看甲板上能站多少人，结果把船搞沉，于在运河里的翻车吧。