如图往昔英仙座流星雨图片。
查看一下英仙座流星雨的历史和科学知识。
Check out the science and history of the Perseid meteor shower.
上一次这样壮观的英仙座流星雨出现在2009年。
The last time a special Perseids shower like this one occurred was in 2009.
上一次这样壮观的英仙座流星雨出现在2009年。
The last time a special Perseids shower like this one occurred was in 2009.
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