A yardang is a streamlined hill carved from bedrock or any consolidated or semiconsolidated material by the dual action of wind abrasion, dust and sand, and deflation.Desert Processes Working Group: Yardangs Yardangs become elongated features typically three or more times longer than wide, and when viewed from above, resemble the hull of a boat.

1. The desert was dotted with yardangs, their sharp ridges standing out against the horizon.
   沙漠中點綴著風蝕丘，它們尖銳的脊狀地形在地平線上格外顯眼。
2. Yardangs are commonly found in arid regions where wind erosion is prevalent.
   風蝕丘通常出現(xiàn)在干旱地區(qū)，在這些地方，風蝕作用非常普遍。