Rarely more than two hundred meters deep they lie on the continental shelves which may stretch sometimes for hundreds of miles 它们挨着大陆架 很少地超过200米深, 大陆架有时可能延伸达几百英里
Temperatures rarely rise above freezing and the air is thin. 温度几乎总是在零下 空气又非常地稀薄
The red panda, rarely glimpsed in the wild. 小熊猫在野外十分罕见