He has the ability to solve that problem.

The two poles of the Earth are the North Pole and the South Pole.

He was standing on his two feet.

The United States has adopted a bicameral system.

We threw a party to celebrate the completion of the project.

The project has successfully completed.

This company is like a Liangshan Marsh, where ambitious men gather.

The dormitory housemother cleans our room every day.

In physics, it is important to calculate the center of mass of an object.

This story is about two heroes joining forces to defeat evil.