Each dawn cape fur seals leave their colony to go fishing. 黎明时分,南非海狗离开聚居地去捕鱼

215. but they share these waters with a shark twice their size.
     不过还有2倍于它的鲨鱼 在和它们一起分享这片水域
216. The great white.
     大白鲨
217. The largest predatory fish on the planet.
     地球上最大的掠食性鱼类
218. Each dawn cape fur seals leave their colony to go fishing.
     黎明时分,南非海狗离开聚居地去捕鱼
219. To reach the open sea,
     要到达远海
220. they must cross a narrow strip of water
     它们必须穿越一片狭窄的水域
221. and that is patrolled by great whites.
     大白鲨就在那里逡巡

来自《行星地球 第一季 第九集 Planet Earth S01E09 海洋》第 218 行