Cov kab ntawv qhia kev tsheb ciav hlau feem ntau yog tsim los ntawm cov swb thaiv thiab cov lus qhia kev tsheb nqaj hlau, thiab cov swb thaiv feem ntau yog siv hauv kev sib txhuam kev sib txhuam kev tsheb ciav hlau. Linear qhia, tseem hu ua kab tsheb ciav hlau, swb tsheb ciav hlau, txoj kab qhia kev tsheb ciav hlau, txoj kab tsheb ciav hlau, siv rau cov kab sib txuas lus sib txuas lus ...
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