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 ...

Wildlife in lockdown 野生动物在新冠肺炎疫情封锁期间的生活 Episode 200709 / 09 Jul 2020 Learn English words and phrases from this story ...