They're testing the legs that will carry them thousands of miles, 他们正在测试自己跋山涉水用的四肢
are hit by thousands of avalanches every year. 每年要发生数千起雪崩
There are hundreds of thousands of islands, 地球上有成千上万的岛屿
How they find their way back across thousands of miles of open ocean, 它们如何从1000英里外再次赶回
At first, there are merely thousands 一开始,不过几千只
and they live for thousands of years. 寿命更可达数千年
After two months and thousands of miles, they're entering the polar seas both in the north and the south. 历时2个月,数千英里的跋涉 它们进入了两极的极地海洋
There are literally thousands of different types of cordyceps fungi 大约有1千种不同的有毒寄生菌
with the droppings of tens of thousands of nesting penguins. 它们的粪便使山顶看起来一片粉红