For example:
The bell rang,
The counselor walked into the classroom.
A pair of god's eyes,
Look at our faces.
Students,
What is an ideal?
I've been thinking about this for a long time.
Thinking about coke,
Thought of Huang Jiguang.
Ah,
Struggle for the cause of * * *,
Is our highest ideal.
Note: the period must rhyme, and other places may or may not rhyme. This is the basic rule of writing modern poetry. If you don't meet this basic rule, you can call it any other name, but you can't call it "poem"