User_gary You must clear/clear up first basic ideas/concepts before you move onto in-depth study. You must first clear up basic concepts before moving to in-depth studies. I will first clear up the basic terms and then move onto to the toughest tougher one ones.
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User_garyYou must clear/clear up first basic ideas/concepts before you move onto in-depth study.
You must first clear up basic concepts before moving to in-depth studies.
I will first clear up the basic terms and then moveontoto thetoughest
User_gary You took the chair and it's your onus to keep it away.Aha! "Where do you keep the sugar? I'd like to put it back where it belongs."