本集内容. Thousands of starlings form a stunning murmuration. 椋鸟群舞：上万只椋鸟构成壮丽奇观. 文字稿. This is not smoke or a swarm of insects, but actuall ...

The number of smokers in England have fallen to the lowest on record Gaia space telescope plots a billion stars 盖亚太空望远镜拍出十亿颗星星 Episode 160916 / 16 Sep 2016 A giant star map is in the making British ...