My child attends a supplementary school every Saturday.

The theory of harmonic oscillators is a fundamental concept in physics.

The Dow Jones Industrial Average has dropped significantly.

Greenwich Mean Time is the standard that determines the time of the world.

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

He is studying late into the night to learn a new computer language.

I analyze data using a spreadsheet software.

The time complexity of this algorithm is O(n).

The space complexity of this algorithm is O(n).

This computer is using the latest technology.