Moist air lying over the neighbouring Atlantic 大西洋沿岸上空的湿空气

311. The trick is simply knowing how to reach it.
     诀窍在于如何获取水分
312. Dawn in the dunes of the Namib,
     破晓时分 纳米布沙漠的沙丘上
313. and something magical is happening.
     神奇的现象正在发生
314. Moist air lying over the neighbouring Atlantic
     大西洋沿岸上空的湿空气
315. is cooled and blown inland,
     冷却并被吹至内陆
316. forming fog banks that shroud the desert in mist.
     形成雾堤 笼罩沙漠
317. This precious moisture lies tantalisingly out of reach
     这些珍贵的水汽诱人地弥漫在沙丘顶部

来自《行星地球 第二季 第四集 Planet Earth S02E04 沙漠》第 314 行