Okay, the user wants me to translate "chemical bonds" 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, "chemical bonds" is in English, so I need to translate it. The correct Thai term for "chemical bonds" is "พันธะเคมี". I should make sure there's no typo. Also, since the user mentioned to output only the translation, I shouldn't add anything else. Let me confirm the translation once more to be sure. Yes, "พันธะเคมี" is the accurate term. Alright, that's all.