2 sentences

1. 他不该肆意破坏公物。

   tā bù gāi sì​yì pò​huài gōng​wù.

   He should not wantonly destroy public property.

   Source: Dong Chinese Dictionary

2. 每个人都应该爱护公物。

   měi gè rén dōu yīng​gāi ài​hù gōng​wù.

   Everyone should take care of public property.

   Source: Dong Chinese Dictionary