Cách sử dụng
An encyclopedia is a big book or set of books that has information about many different subjects. It works like a kind of dictionary, but it includes more detailed information about each topic. People can use an encyclopedia to learn about things like history, science, geography, and much more. Students might use an encyclopedia to do research for a school project or to learn more about a subject they are interested in. Nowadays, many encyclopedias are available online, so people can easily access all of the information they need from their computer or smartphone.