1.

1. Alkalis counteract acids.
    碱中和酸。

2. counteract的解释

2. This drug will counteract the effects of poison.
    这药能消解毒性。

3. counteract

3. The doctor gave him some medicine to counteract the effect of the poison.
    医生给他些药解毒。

4. This drug should counteract the poison.
    这药可消解毒性。

1. 公共查询·英语单词

1. 抵消：这个偏离越大,为纠正这个偏离所需要的行动变量就越大,(2)式表明,感知信号是干扰变量与行动变量加权差(weighted difference)的函数,它报告了行动抵消(counteract)干扰以达到基准信号

2. 对抗：而且认为,一切生命都是层级地组织起来的负反馈系统,一切生命行为(2)对于环境加到q*的干扰与摄动(disturbances & perturbation),系统总是存在着不断的对抗(counteract)和补偿行动,使qi倾向于返回q*,

3. 消解,抵消：counter 反对,对抗 | counteract 消解,抵消 | counterattact 反攻,反击

4. 反作用,抵抗：corresponding 相应的 | counteract 反作用,抵抗 | couple with 伴随

1. 抵制;抵消;抵抗
    To counteract something means to reduce its effect by doing something that produces an opposite effect.

    e.g. My husband has to take several pills to counteract high blood pressure...
           我丈夫不得不吃几片药来降压。
    e.g. This event will counteract such trends.
           这一事件将会削弱此类趋势。

1. destroy property or hinder normal operations

    e.g. The Resistance sabotaged railroad operations during the war

    Synonym: sabotageunderminecounterminesubvertweaken

2. oppose and mitigate the effects of by contrary actions

    e.g. This will counteract the foolish actions of my colleagues

    Synonym: countervailneutralizecounterbalance

3. act in opposition to

    Synonym: antagonizeantagonise

4. oppose or check by a counteraction

    Synonym: countercheck