Cytogenetics is a science that studies the structure and function of chromosomes and genes.

Abstract algebra is a branch of mathematics that studies algebraic structures.

Abstract algebra is a field of mathematics that studies algebraic structures in an abstract way.

He crossed the border as an asylum seeker.

He destroyed the wall with a hoe.

He bought a new cap.

That movie was really dreadful.

I like to take a walk in the park in the late afternoon.

The meaning of 暜 refers to something general.

He led the parade, waving the pennant.