roll-over

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

那一发凝固汽油弹滚落到了嵌壁枪眼前。

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.

朋友解释说，那些参派对捣蛋鬼想看能站多少人，结果把船搞沉了，相当于在运河里翻车吧。