诋毁的英文：
abuse 2
bespatter
decry
denigrate
drag through the much
drag through the mud
preach down
run down
vilipend

To calumniate other persons
诋毁他人

blacken a person's character/name
诋毁某人的品格/名声

To discredit unjustly;malign.
诽谤不公平地玷辱;诋毁

He wants to calumniate other persons.
他想诋毁别人。

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

Never allow your partner or yourself to denigrate the other.
永远不要让你的配偶或你自己诋毁对方。

There is nothing worse, for most children, than for their parents to denigrate each other.
对于大多数孩子来讲，没有什么比父母彼此诋毁，更加伤害孩子了。

Throw muck at sb.
诋毁某人，中伤某人

He slandered his opponent's good name.
他诋毁对手的美名。

He was basely slandered by his enemies
他受到仇敌卑鄙的诋毁。

Of course, this can be abused.
当然了，这样还是可能会被滥用。

a defamatory or abusive word or phrase.
污蔑的或辱骂的词或词组。

occasional drug abuser
间歇滥用药物者