The windows are covered with grilles to deter vandals.

窗戶都安上了铁柵栏，以防止故意坏。

The seat-covers on the train had been ripped by vandals.

火车上座位坏公物者故意撕。

Vandals slashed the paintings with knives.

坏公物者用刀划了那些绘画作品。