Cách sử dụng
The word 'mandatory' means something that is required or essential. For example, if someone says something is mandatory, it means that it is very important and must be done. This word is often used in situations like work, school, or law. For instance, you might hear that it is mandatory to wear a seatbelt while driving, or that attendance is mandatory for a particular class. Simply put, it means something that is necessary and cannot be avoided.