He shortened the story and conveyed only the main points.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

In chemistry class, I learned about alkanes.

Alkynes play a very important role in organic chemistry.

Alkenes, also known as olefin hydrocarbons, play an important role in organic chemistry.

Alkenes play a very important role in organic chemistry.

How much is the parking fee?

Anzu is reading a new book.

He is working round the clock.

Looking up at the Big Dipper, I feel at peace.