Cách sử dụng
The word "primer" can mean different things depending on the context. In general, it refers to a basic and introductory book or lesson that teaches the fundamentals of a subject. For example, a children's primer may teach the basics of reading, writing, and arithmetic. In a different context, a primer can be a type of paint or coating that is applied to a surface before painting to improve adhesion and help the paint last longer. Overall, "primer" is a useful word to know because it can be used in a variety of contexts related to learning, painting, and more.