Mask on的意思

"Mask on" is a phrase that means to put on a face mask, typically referring to the act of covering one's mouth and nose with a mask to protect against the transmission of diseases, especially in the context of the COVID-19 pandemic. This phrase is often used as a reminder or instruction to wear a mask in public places, especially where social distancing may be difficult, such as in stores, public transportation, and crowded areas.