说坏话用英语怎么说？

说坏话

• malign，missay，speak ill of

  [动] badmouth

例句

• To attack the character or reputation of; speak ill of; defame. 攻击人格或名誉; 说坏话; 诽谤.

英汉词典释义

• malign; missay; speak ill of
  [动]
  badmouth