My younger brother was diagnosed with keratoconus.

Trigonometry is a branch of mathematics that studies the relationship between angles and triangles.

The amygdala is a part of the brain that controls our emotions.

He read the small print using a magnifying glass.

He distinguished himself in that project.

He is an expert in nuclear physics.

My favorite fighting game is Street Fighter.

He solved the problem by hook or by crook.

He was concealing that information.

Each class conducts lessons in their respective classrooms.