Studying requires concentration and concentration. Even if you have a high IQ and a good teacher, if you study half-heartedly, you will get nothing.

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linkhttps://www.instagram.com/p/CxRccoYv8QM/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA== calendar_today17-02-2013 09:32:11