hardly ever appears on the surface of the dunes. 鲜少出现在沙丘表面
more than enough to draw the oryx out of the dunes. 远远多于从沙丘返回的长角羚的需求
The lions must wait for the oryx to leave the safety of the dunes, 狮子必须耐心等待 长角羚离开安全的沙丘
they won't attempt to cross this field of sand dunes 它们不会试着爬过一座沙丘
The main body of these dunes may not have shifted for 5,000 years. 这些沙丘的主体 可能已有5000多年未曾移动
Star dunes like these can be 300 metres high. 这些巨型沙丘高达300多米
In Namibia the winds have built some of the biggest dunes in the world. 在纳米比亚 风塑造了 一些世界上最大的沙丘
Dunes of sand hundreds of miles long streak their surface. 绵延数百英里的沙丘像是一条条皱边花纹