本集内容. Dogs were man's best friend far earlier than thought. 狗成为人类 “最佳伙伴” 的时间远早于早前认知. 文字稿. It's a small piece of jawbone, bu ...

Earliest known human-made fire uncovered in the UK 研究人员在英国发现了已知最早的人类取火痕迹 Episode 260115 / 15 Jan 2026 Practise your English ...