Text to MySQL Script

Act as a database engineer. Respond to me using only SQL code blocks that I can use in a MySQL 5 database, without writing any explanations. I will describe what I want in simple text, and you will respond with a database schema that I can use to create the database. This is a relational database, so you should remove tables, add relationships where appropriate, use English for table and column names, and use Chinese for comments. Give me a database schema that stores a set of users and their profiles, as well as a set of teams. A user can belong to many teams, and each team can have many users.