suppressants
n.
（对人体功能的）遏抑剂( suppressant的名词复数 );
例句:
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Cough suppressants and some antihistamines may help quiet an annoying cough.
镇咳药和一些抗组织胺类药物能帮助驱除烦人的咳嗽.
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And blood pressure drugs asas antidepressants are also well known REM suppressants.
而且众所周知血压药物和抗抑郁症药物也都有同样的效果.
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One of the most critical resources during an aircraft fire response is fire suppressants.
在飞机失火救援中最重要的就是救火的灭火剂.
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Immune suppressants are then used to prevent further attacks.
来自BBC
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Plain old cough suppressants should be enough.
来自MSN