If you're younger than age 50, you probably shouldn't waste your time or money with the test, Quest says. That is a low risk category.

Quest实验室表示，如果年龄不到50岁，不应该把时间和金钱浪费在这个测试上。50岁以下是一个低风险类别。

If you are in one of those lower risk categories and don't have to wear a mask in all those settings, understand that if the risk rises again, you might need to.

如果你属于那些风险较低的人群，在所有这些情况下都不必戴口罩，那么你也要明白，如果风险再次上升，你就可能需要戴口罩了。

Regulation measures implemented for enterprises with different credit risk categories will help lead to effective and fair regulation, and stimulate the vitality and creativity of market entities, Pu said.

蒲淳称，通过对不同信用风险类别的企业实施差异化的监管措施，做到有效监管、公正监管，有利于充分激发市场主体活力和创造力。