I would like to repeat your questions and explanations
「先生の質問も説明も全て私が繰り返したいです」
I would like to repeat your questions and explanations.
「理解を深めること」が目的であれば、文の最後にそれを付け足す形になります。
「理解を深める」=to improve my understanding.
I would like to repeat your questions and explanations to improve my understanding.
是非参考にしてみてください。
I want to repeat all the explanations and questions of the teacher.
I would like to repeat everything the teacher says.
何をおっしゃったのか完璧な文を繰り返すことで理解したいです。
I want to understand everything the teacher is saying by repeating all the explanations and questions.
したいです。という表現は下記のようになります。
I want to
I would like to
I feel like doing
I am/ feel inclined to do
チリ 
ルーマニア 
