counteract

动词 counteract:

1. act in opposition to
   同义词：antagonize, antagonise
2. oppose or check by a counteraction
   同义词：countercheck
3. oppose and mitigate the effects of by contrary actions
   同义词：countervail, neutralize, counterbalance
4. destroy property or hinder normal operations
   同义词：sabotage, undermine, countermine, subvert, weaken

1. We must try to counteract the present current of anti-government feeling.
   我们应该努力消除目前的这股反政府情绪。
2. Our bodies produce antibodies to counteract disease.
   我们的身体能产生抗体以抵抗疾病。
3. A remedy or other agent used to neutralize or counteract the effects of a poison.
   解毒药，解毒剂用于中和或对抗毒药作用的药物或药剂
4. Intelligence tests were devised to counteract this narrow specialization.
   旨在抵消狭窄的专门化教学内容而设计了种种智力测验。
5. We must counteract extremism in the party.
   我们应该抵制党内的极端主义。
6. They will counteract the effects of his bad influence.
   他们要清除他的不良影响。

coun.ter.act

v.tr.（及物动词）
coun.ter.act.ed,coun.ter.act.ing,coun.ter.acts
To oppose and mitigate the effects of by contrary action; check.See Synonyms at neutralize
抵制，抵消：以相反的行动使无效或减清效果；抵制参见 neutralize

【引伸】
coun.terac.tion
n.（名词）
coun.terac.tive
adj.（形容词）
coun.terac.tively
adv.（副词）