祸害，坏处disaster

• 虫害

  insect plague

• 水害

  flood damage

• 为害不浅

  highly dangerous

• 为民除害

  get rid of a public scourge

使受损害；危害to harm; to endanger

• 害人不浅

  cause much suffering

• 并无害人之心

  completely well-intentioned

• 害人反害己。

  You harm others but end up harming yourself.

• 姑息孩子就是害孩子。

  Over-indulging children is harmful to them.

• 对不起，害你久等了。

  I'm sorry to have caused you trouble by keeping you waiting for so long.

杀害to kill

生疾病to contract

• 害肺炎

  catch pneumonia

• 他害了伤寒。

  He contracted typhoid fever.

产生不安情绪to have feelings of

有害的harmful

• 有害昆虫

  harmful insect