Question

How to properly use short and long dash lines in a sentence?

Answer 1

To use short, you use the short to show something, like (state-of-the-art design)

Answer 2

One example is know is when you want to name multiple things, you put a dash in the front and in the end like ;

MacKenzie looked like the creature -- gigantic, rough, and evil.

You're welcome :)

*Answer* *ALSO* : can be used in place of a colon when you want to emphasize the conclusion of your sentence