And Centers for Disease Control and Prevention studies have shown that more mask material is generally better than less.
⇑ Translate the sentence above by Google ⇑
Related: prevention
Prev: Prevention is key, scientists says because once ecosystems pass their tipping point, it is remarkably difficult for them to return ．
Next: The outcome of the epidemic prevention and control directly affects people's lives and health, the overall economic and social stability and the country's opening-up.
