Great Barrier Reef是什么意思？

Great Barrier Reef的音标：...

It's only been latterly that we've discovered that it's lots of individual reefs, around about 2,900 separate reef systems which make up the Great Barrier Reef.直到近来我们才发现,它们其实是众多独立的礁石, 大约有2900个独立的礁石系,组成了大堡礁...