Andromeda, who appears in Greek mythology, is known for her beauty.

Vitamin B6 is an important nutrient for maintaining a healthy nervous system.

Topology is a branch of mathematics that abstracts and generalizes the concept of space.

He is learning the techniques of lobbying politicians.

She loves strawberry shortcake.

He is acting like catching a thief and tying him up by pointing out others' mistakes without admitting his own failures.

My younger sister is in her early teens and goes to junior high school.

Fluoromethane plays an important role in chemical reactions.

Chloromethane is often used in organic chemistry experiments.

Difluoromethane is widely used as a refrigerant.