translation.en: So people believe now that Titan is most likely what we call a pre-biotic planet, because it's so cold organic material did not get to the stage of becoming biological material, and therefore life could have evolved on it.
translation.zh: 人们相信土卫六最象 生命起源星球，因为它太冷了有机物 不能生成生物物质， 由此才能有生命进化。