Barchans
(barchan 的复数) 新月形沙丘, 弧形沙洲
🗣️ 情景例句
It's complicated.
原因很复杂。
To examine the problem
检讨问题
They had laboured for three years to produce this floating work of art;
瑞典人辛辛苦苦干了3年才建成这件水上艺术品，