the chemical formula for water

Teacher: What the chemical formula for water is the ?

Blonde: "HIJKLMNO"!!

Teacher: What buy christmas are you talking about?

Blonde: Yesterday you said its H to O!

水的分子式

老师：水的分子式是什么？

花瓶：HIJKLMNO！！

老师：你在说什么？

花瓶：昨天你不是说H to O吗？