It's huge bulk is sustained by mere microscopic creatures of the sea 它的巨大身躯上是靠吃一种很小的海洋生物长成的

9. The biggest of all fish
   这是最大的鱼类
10. thirty tons in weight, twelve meters long
    30吨重,12米长
11. a whale shark.
    鲸鲨
12. It's huge bulk is sustained by mere microscopic creatures of the sea
    它的巨大身躯上是靠吃一种很小的海洋生物长成的
13. Plankton.
    浮游生物
14. Whale sharks cruise on regular habitual routes between the best feeding grounds.
    鲸鲨经常在它的最好的进食地点之间洄游
15. In February, that takes them to the surface waters far from the coast of Venezuela.
    二月,鲸鲨从遥远的委内瑞拉海岸来到这片浅海

来自《行星地球 第一季 第十一集 Planet Earth S01E11 海洋深处》第 12 行