crescent dune

例句：

1. 1.The sun sets over the new moon dune, casting a warm glow over the landscape.
   太阳在新月形沙丘上落下，为整个景观投下温暖的光辉。
2. 2. The hikers were drawn to the crescent dune for its unique rock formations.
   徒步旅行者被新月形沙丘独特的岩石形态吸引。
3. 3.The astronomy club decided to study the crescent dune as part of their field trip.
   天文俱乐部决定作为他们的野外考察的一部分研究新月形沙丘。