祸害 (huò hai): disaster; harm; scourge; bad person; to damage; to harm; to wreck

The war brought huge disaster to innocent civilians; many people lost their homes.

This pest causes very serious damage to crops; farmers have to spray large amounts of pesticide.

He became addicted to gambling and ultimately brought disaster upon himself and his family.

Carelessly discarded plastic waste harms marine life; sea turtles often die after mistakenly eating plastic bags.

That unscrupulous businessman harmed many consumers in order to make money, and was eventually arrested by the police.