Hi
Since one of the best methods of learning any language is to describe something in the same one, please add English to English course. it is so effective than English to any language like Persian, Spanish and etc.
Thank you
HRK
Well, there is good news for you: there is already an English to English course:
Advanced English (C1, C2) by Csaba.Olah.942
If possible, it’s the best not to use another language. That is how we all learned our first langauge! However, at the lower stages, you need something to get started.
It is possible to use pictures for the lower levels, but it’s so time consuming to build. And how do you picture a words like, ‘to jerk’ or ‘hospitality’? And at a lower level a definition might be too difficult. I started to use a dictionary in a foreign language when I was at B2-C1 level. That is what it takes.