so can only suck up the scraps. 所以只能吸食残渣
All over the planet, the poorest scrabble to survive on scraps, 全球最贫困的人依靠拾荒挣扎度日
and they'll be able to collect the scraps from it's meals. 引水鱼就收集鲨鱼咬碎的食物碎片吃