Strong for his age. He works hard. 以他这年纪算得强壮,干起活来也挺勤快
each with an infant exactly the same age. 每只都带着一只同样大小的幼鹿
A relic from the Ice Age, a baby Saiga antelope, 一种冰川时代存活至今的生物 高鼻羚羊幼崽
Since the last Ice Age they've become cut off from the outside world. 自从上一个冰川期以来 它们便已和外界隔绝
Rearing four cubs to this age is an exceptional feat, 把4只小狮养到这么大 是很了不起的业绩