洞窟壁画 （どうくつへきが、doukutsu hekiga） This is the standard Japanese term for "cave wall paintings" (the meaning of the original Chinese "洞壁画"). For example, the famous Lascaux cave paintings are referred to as 「ラスコーの洞窟壁画」 in Japanese. Note: While the original Chinese uses "洞" (cave), the more common compound for "cave" in Japanese in this context is "洞窟" (doukutsu), so it's combined with "壁画" (hekiga = wall painting) to form the natural Japanese expression. **Answer:** 洞窟壁画

[対象]の洞窟壁画は、ザラザラした石壁に原始的なオーカー顔料と木炭の線で描かれている。にじんだ手形、粗雑な幾何学模様、そして松明がゆらゆらと揺れる光が、原始的で太古の雰囲気を醸し出している。 ### Breakdown of key terms: - **Cave painting of a [subject]**: [対象]の洞窟壁画 - **Primitive ochres**: 原始的なオーカー顔料 - **Charcoal lines**: 木炭の線 - **Rough stone wall**: ザラザラした石壁 - **Smudged handprints**: にじんだ手形 - **Crude geometry**: 粗雑な幾何学模様 - **Flickering torchlight**: 松明がゆらゆらと揺れる光 - **Add a primal, ancient mood**: 原始的で太古の雰囲気を醸し出している This translation balances literal accuracy with natural Japanese flow, capturing the primal, ancient atmosphere described in the original text. The use of 醸し出している (kasidashite iru) emphasizes how the elements combine to evoke the mood, which is more idiomatic than a direct "add". **Alternative (noun-phrase focused, closer to original structure):** ザラザラした石壁に原始的なオーカーと木炭の線で描かれた[対象]の洞窟壁画。にじんだ手形、素朴な幾何学模様、松明のゆらめきが、原始的で古風な雰囲気を添えている。 This version retains the original's noun-phrase opening while keeping the mood intact. Both are valid, but the first is more conversational in Japanese. Choose based on context! ✨ (Note: Replace [対象] with the specific subject, e.g., 牛 (cow) or 狩人 (hunter) for concrete use.)