主题：Ｈ２Ｏ

Teacher: (In chemistry class) "What is the formula for water?"

Pupil: "H─I─J─K─L─M─N─O."

Teacher: "Whoever told you that?"

Pupil: "You did. You said it was H to O."

老師：（上化學課）「水的化學式是平麼？」

學生：「Ｈ－Ｉ－Ｊ－Ｋ－Ｌ－Ｍ－Ｎ－Ｏ。」

老師：「誰教你的？」

學生：「是老師啊。你說水的化學式是Ｈ到Ｏ。」