Cách sử dụng
'Upright' is a word used to describe something that is straight or vertical. It can also describe a person or animal that is standing tall with great posture. For example, a person sitting in a chair can be asked to sit upright, meaning they should sit with their back straight and not slouching. An upright piano is an example of a musical instrument that stands vertically. In summary, 'upright' is used to describe something that is standing or positioning in a straight and vertical position.