Okay, the user wants me to translate "anaerobic respiration" into Thai. Let me check if the term is already in Thai. Since the original is in English, I need to translate it. The correct Thai term for anaerobic respiration is "การหายใจแบบไม่ใช้ออกซิเจน". I should make sure there's no existing Thai content here. The user specified to output only the translation without explanations. So, I'll just provide the Thai term directly.