Cách sử dụng
'Restroom' is a polite word used in American English to refer to a public or private bathroom where people can go to use the toilet or wash their hands. It is commonly used in places like restaurants, hotels, airports, and other public areas where people might need to use the bathroom. So if you ever need to ask for the location of a bathroom in America, using the word 'restroom' is a polite and common way to do so.