The bomber had breached security by hurling his dynamite from a roof overlooking the building.

爆破手从一个俯瞰这幢楼房的屋顶上投掷了炸药,攻破了安全防卫。

《柯林斯英汉双解大词典》

The bomber had breached security by hurling his dynamite from a roof overlooking the building.

爆破手从一个俯瞰这幢楼房的屋顶上投掷了炸药,攻破了安全防卫。

《柯林斯英汉双解大词典》