can support something rarely seen in the wild. 能养育起野外极其罕见的小生命
How life will cope here in the future remains to be seen. 沙漠生命在未来如何存活 依旧有待观察
Mother and cub were not seen again. 雌雪豹和幼崽从此消失不见
Seldom seen, the detail of their lives has long been a mystery, 由于行踪隐蔽 雪豹的生活细节一直是个谜
yet the great barrier reef is so big it can be seen from the Moon. 可是它们生成的大堡礁甚至可以在月球上看到
This might be the first time that one group will have seen another for a month. 这可能是两个象群 一个月来第一次见面
Figs are so popular, that as many as 44 different kinds of bird and monkey have been seen working a shift system on a single tree. 无花果树非常受欢迎 甚至可以吸引多达44种的不同鸟类猴类来交替进食
This rich pasture once supported the greatest herds ever seen on our planet. 这里的大草原肥沃甘美 曾经养育着地球上最大的动物群落