Okay, the user wants me to translate "independent sale" into Thai. Let me check the rules again. The first rule says to translate all content into Thai. The second rule states that if the content is already in Thai, leave it as is. The third rule is to provide only the translation without any explanations.
So, "independent sale" is in English, so I need to translate it. The direct translation would be "การขายอิสระ" in Thai. I should make sure there's no existing Thai text here. Since the input is English, I proceed with the translation. No need to add anything else. Just output "การขายอิสระ".