1, the definition of XXX is that .(whatever you define XXX) eg. The definition of family planning policy is that the government enforces every family can only have one child. 2, Compared with AAA, BBB is/has . e.g. Compared with middle school, University is much larger. 3, .the person who is... e.g. I don't like him who is ugly and dishonest. 4, phrase: for example/for instance/such as/like e.g. The university has many schools such as Math, Music, Art and Computer(Computing).