Qual é a diferença entre "ground floor" e "first floor" ?Você pode indicar exemplo de resposta.

@unpredictablecrow The ground floor is almost always even with the ground. The first floor may not always be the ground floor, depending on what numbering system is used by the building. Some may label the floor below ground as B (for basement.) There can be two floors below ground, labeled B1, and B2. Sometimes the main floor is labeled L for lobby. Sometimes numbers can skip a floor or the other way around. Some numbers start numbering the actual first floor (whether above or below ground as '1'. Strictly speaking, the first floor is always the actual first floor, if it is the first floor the building has, but don't use that. You can quickly figure out a building floor numbering plan by glancing at the buttons in the elevator. Or if you use the stairs, typically the floor number or name will be on the door before you enter the floor. Be careful when taking the stairs because some places keep the stairwell doors locked and you may have to take the stairs all the way to the main floor. Which brings me to another point, some floors are labeled M for main.