Recently, Austrians began trading in their cloth face coverings for medical quality masks mandatory.

近日，奧地利人開始用布面罩強制換取醫用品質口罩。

Austria is among the first European countries to make wearing the F F P to medical mask mandatory on public transportation and in shops and businesses.

奧地利是歐洲最早規定在公共交通、商店和企業中必須佩戴F F P到醫用口罩的國家之一。

The move comes because of an increase in cases of coronavirus infections.

此舉是因為冠狀病毒感染病例增加。

Mandatory is something that must be done or is required by law.

強制性是指法律規定必須做的事情或要求做的事情。

No other choice of action is permitted.

不允許有其他的行動選擇。

If something is mandatory, a mandatory rule or law cannot be ignored mhm.

如果某件事情是強制性的，那麼強制性的規則或法律就不能被忽視嗯。