How to understand it?
Intros are less often accepted than Extros.
The "Intros" means "introvert", and the "Extros" means "Extrovert".

Question

How to understand it?
Intros are less often accepted than Extros. 
The "Intros" means "introvert", and the "Extros" means "Extrovert".

Answer

ok, thank you.

Answer

Your title can be improved.  "Please explain the difference between these words" is one good title.  Starting a request with "please'' is a positive way to attract constructive responses.