Mine: Opening my mouth is not for painting, but for paying.

Spring: hard is soft, and soft is hard.

Lime: Pour cold water on it, and it will give you heat.

Fan: It brings coolness to others and warms your heart.

Ruler: Although small or simple, he has a scale all his life to help us not make mistakes!

Pencil: gorgeous appearance, dark heart.

Blackboard: The blackboard is full of truth, but none of it is your own.

Candle: only for a moment's glory, but at the expense of your short life.

Balance: usually pretend to be fair, and when you see your weight, you will lean to one side.

Chalk: I'd rather wear out my body in order to write the truth.