1. Search engines: such as Baidu, Google, sogou, 360 search, etc. You can enter keywords in the search box to search, or use the search description (such as "site:") to limit your search within a specific website.
2. Databases: such as HowNet, Wanfang, VIP, etc. , you can search related academic papers, reports and news in the database.
3. Official websites: such as government websites and corporate official website. , you can get relevant policies, products and other information.
4. Social media: such as Weibo, Tik Tok, Auto Express, etc. , you can search related users, topics, content, etc.
5. Online library: For example, official website Library and Digital Library can search related books, periodicals and papers.