noun 下载 🔗分享 沙丘，沙岗 A ridge or hill of sand piled up by the wind. Examples : "The children loved to run and play on the tall, sandy dunes near the beach. " 孩子们喜欢在海滩附近高高的沙丘上奔跑和玩耍。 geography nature environment 与AI对话词汇游戏阅读练习
