will be born in the next few days. 将在几天内出生

281. Caribou females have journeyed to the far north
     雌性北美驯鹿远赴北方
282. to calve.
     来此产仔
283. Over 70,000 caribou babies
     超过七万只驯鹿幼崽
284. will be born in the next few days.
     将在几天内出生
285. As the calves appear,
     小鹿出生的时候
286. so too do the leaves of the newly sprouting grass.
     也正是青草发新芽的时候
287. And the calves must strengthen quickly.
     幼鹿必须迅速增强体能

来自《行星地球 第二季 第五集 Planet Earth S02E05 草原》第 284 行