This is the 59th most frequent Chinese word.
防控
Prevention and control.
Here, "防控" is used as a verb phrase meaning 'to prevent and control', describing the actions to mitigate risks.
我们需要科学地防控疾病的传播。
We need to scientifically prevent and control the spread of diseases.
In this instance, "防控" is used as an adjective form, referring to systems designed for prevention and control purposes.
防控系统的设计非常关键。
The design of prevention and control systems is crucial.
In this sentence, "防控" is used as a compound noun meaning 'prevention and control', referring to actions taken to manage and mitigate the spread of an epidemic.