The Fischer projection is a commonly used representation method in organic chemistry.

In organic chemistry, we use the Haworth projection to represent the three-dimensional structure of sugars.

In the organic chemistry class, there was an explanation of the Natta projection.

I often go to the cinema on weekends.

Life is a series of ups and downs.

Life is a series of vicissitudes.

I am studying Modern English.

I like watching TV while eating potato chips.

The Cheshire cat is smiling broadly.

He plays a very important role as the team's middle blocker.