We won the top prize at the award ceremony.

I learned how to calculate rational expressions in math class.

His way of speaking is monotone, and I can't feel any emotion at all.

I have my graduation ceremony tomorrow.

I attended the unveiling ceremony of the new park.

We attended his memorial service.

He created a formula to solve the problem.

I learned how to create formulas in math class.

It's difficult to solve this formula.

This building is famous for its Ionic order columns.