How Does The Toothpaste Get Into The Tube? - ??????????????????????????????&

Do you know how toothpaste gets into the toothpaste tube?

តើអ្នកដឹងទេថាថ្នាំដុសធ្មេញចូលបំពង់ថ្នាំដុសធ្មេញដោយរបៀបណា?

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