A calf is separated. 一只幼鹿走散了

303. while the caribou pass through their territory.
     驯鹿经过领地时把握住机会
304. The wolf runs at the herd,
     北极狼跑向鹿群
305. trying to flush out the weak or the slow.
     试图冲散群体中的弱者
306. A calf is separated.
     一只幼鹿走散了
307. At full tilt, 40 miles an hour,
     狼全力以赴捕猎的时速将近六十公里
308. the wolf is just faster.
     只比小鹿快一点点
309. But the calf has stamina.
     但是幼鹿的耐力更好

来自《行星地球 第二季 第五集 Planet Earth S02E05 草原》第 306 行