I love you more than the tallest tree, more than the biggest mountain, and more than the brightest star.

我爱你比那最高的树还要多，比最大的山还要多，比最亮的星星还要多。

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We call these stars supergiants and they are 20 times more massive than our own sun and so when these stars go supernova they expand to a radius of up to a billion miles, becoming the biggest and brightest star in the universe.

BBC: NASA's Swift satellite observes massive supernova stars