- endlessly searching.
寻找食物上 - Plankton feeding rays do so,
吃浮游生物的蝠鲼也是 - gliding with minimum effort.
用最省力的方式在水中滑翔 - The oceanic whitetip shark
远洋白鳍鲨 - another energy efficient traveler.
也是节省能量的旅行者 - It specializes in locating prey in the emptiest areas of the open ocean
它擅长的是即使在最空荡的海域也能找到猎物 - patrolling the top one hundred meters of water.
巡游高度在海平面至水下100米之间