He has a deep interest in etymology.

He is an expert in dynamics, helping to solve complex problems in physics.

He is interested in the study of futurology.

He is good at geometry.

He is very interested in anatomy.

The philosophy of Mohism, one of the thoughts of ancient China, advocated universal love and fairness.

He fulfilled his responsibilities as a government official.

We must absolutely obey the orders of the emperor.

He was promoted to a high-ranking position.

In mahjong, the opponent on my right, the lower house, is a formidable enemy.