This 正數 is the same as what I learned in school.

His advice was very practical.

His target-like way of thinking is hard to understand.

He is my biggest enemy.

What is that target?

He drew his bow aiming at the target.

He drew his bow aiming at the target.

In order to reduce food waste, we should plan our food consumption.

Fundamental interaction is one of the most important forces in physics.

He always proactively suggests new ideas.