英语听力：自然百科 大堡礁 堡礁内外(20)（在线收听）

Tiger sharks are generally solitary,so this gathering of 16 is extremely unusual.

虎鲨通常都是独居的,所以聚集了16只是极其少见的。

This is the largest number of tiger sharks seen in one place at any one time.

这是头一次在一个地方同时看到这么多虎鲨。

When you hunt the dead, there's no need to hurry.

捕食死亡的猎物时，不必着急。