Combinatorics is a branch of mathematics that studies combinations of things.

Combinatorics is a branch of mathematics dealing with issues of order and choice.

Combinatorics is a branch of mathematics that studies combinations of things.

This compound is destroyed by hydrolysis.

This compound can be hydrolyzed with water.

My child attends a supplementary school every Saturday.

He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.

Protein-degrading enzymes play a role in breaking down unnecessary proteins in the body.

He always keeps in mind the phrase 'If one learns without thinking, it is a waste.'