Cov me nyuam lub hnab ev ntawv yog qhov tsim nyog rau txhua tus menyuam mus kawm ntawv, vim tias tus menyuam nyob rau theem ntawm lub cev ntev, kev xaiv lub hnab ev ntawv cuam tshuam ncaj qha rau tus menyuam noj qab haus huv, yog li kev xaiv cov menyuam lub hnab ev ntawv tseem ceeb heev.
Nyeem ntxiv