Okay, the user wants me to translate "stinging-cell" into Simplified Chinese. Let me think about the correct term here. "Stinging-cell" is a biological term, probably referring to a cell that can sting, like those found in jellyfish or other cnidarians.
In Chinese, the term for such cells is usually "刺细胞" (cì xì bāo), which directly translates to "stinging cell." I should check if there's a more standard or commonly used term. Sometimes, scientific terms might have specific translations. For example, "刺细胞" is the standard term used in biology textbooks.
Wait, the user mentioned if the content is already in Simplified Chinese, output it unchanged. But "stinging-cell" is in English, so I need to translate it. Let me confirm the translation again. Yes, "刺细胞" is correct. No other terms come to mind. So the answer should be "刺细胞."