- For a few battle-scarred survivors,
这些幸存下来的伤痕累累的蝠鲼 - it's a lucky reprieve.
可以暂时喘一口气了 - With the orca gone, the rays can resume their courtship...
虎鲸离开后 蝠鲼群得以继续它们的求偶行为 - ..and they do so in astounding numbers.
而且规模惊人 - Tens of thousands of rays in a single shoal.
数以万计的蝠鲼聚集在一起 - Vast areas of our ocean are yet to be explored.
海洋中还有广阔的区域尚未探索 - The least known parts of it are its great depths.
这之中最不为人知的区域是海洋深处