防扩散

例句：

1. 1. To prevent the spread of the virus, we need to follow strict hygiene protocols.
   为了阻止病毒的传播，我们需要遵循严格的卫生协议。
2. 2. Thegovernment has implemented measures toprevent the spread of the disease.
   政府已经采取了措施来防止疾病的传播。
3. 3. The outbreak of the pandemic has ledto a nationwide effort to prevent the spreadof the virus.
   大流行的爆发导致全国范围内努力防止病毒的传播。