And even the dunes have their own magical quality. 甚至贫瘠的沙丘也有其独到的特质

46. is on a knife edge.
    生命如履薄冰
47. So desert dwellers have had to evolve in remarkable ways.
    因此 沙漠的居民必须以非凡的方式进化
48. Some have even given rise to legends of dragons and unicorns.
    其中有些生物成了龙与独角兽传说的源头
49. And even the dunes have their own magical quality.
    甚至贫瘠的沙丘也有其独到的特质
50. Indeed some have their own voice.
    事实上 有些沙丘能发出属于自己的声音
51. Here in Arabia, this extraordinary sound
    在阿拉伯半岛 这种非同寻常的声音
52. is created by billions of moving sand grains vibrating against one another.
    是由数十亿沙粒相互振动而产生的

来自《行星地球 第三季 第三集 Planet Earth S03E03 沙漠与草原》第 49 行