suppressing agent

例句：

1. 1. The drug is a suppressingagent that helps to control the symptoms ofaddiction.
   这种药物是一种抑制剂，有助于控制上瘾症状。
2. 2. The research team discovered anew suppressing agent that could potentially curecancer.
   研究小组发现了一种新的抑制剂，可能有望治愈癌症。
3. 3. The suppression of publicopinion is often used as a political toolto maintain power.
   公众舆论的压制通常被用作政治工具来维持权力。