没有它们世界将会成为一个黯淡的地方。

The world would be a dull place without them.

youdao

这就是超新星，从地球上看原本没有星星(者是一颗很黯淡的星)地方出现了一个明亮的新星。

This is a supernova, which when seen from Earth, appears as a bright new star in a place where none (or only a very faint star) appeared to be before.

youdao

这就是超新星，从地球上看原本没有星星(者是一颗很黯淡的星)地方出现了一个明亮的新星。

This is a supernova, which when seen from Earth, appears as a bright new star in a place where none (or only a very faint star) appeared to be before.

youdao