Cách sử dụng
An abbreviation is a short form of a word or a phrase. It's usually used to make things quicker or easier to write or say. For example, instead of writing "United States of America" every time, people just write "USA." Abbreviations are often used in text messages, emails, and notes to save time and space. It's important to understand common abbreviations so you can communicate effectively and understand messages from others.