His role is to fulfill his responsibilities as a leader.

It is important to understand the importance of health.

He is excited to learn a new programming language.

He is passionate about competitive programming.

Arithmetic operators play an important role in programming.

He is good at arithmetic operations.

He is good at arithmetic.

Object-oriented programming is an important method for improving the efficiency of software development.

He is good at solving arithmetic problems.

Tritium is one of the radioactive isotopes.