Yog tias koj xav tau ntse nrog txav tshuaj, yuav siv daim kawm kawm thiab ua ib pab kawm. Tus uas muaj nyob rau hauv txoj kev kawm yuav tsum txhawb txog cov keg kawm thiab ib tsug ntawm kev sib tham. Qhov tseem ceeb tshaj plaws yog kom koj tau muaj kev paub txog cov tsav tshuaj thiab yuav muaj ib ts