noun 下载 🔗分享 鹅卵石，砾石 A rounded stone from a river bed, fit for use as ballast in ships and for paving roads. Examples : "The old road was paved with smooth cobblestones, making it bumpy but charming. " 这条老路是用光滑的鹅卵石铺成的，走起来虽然颠簸，但却别有一番韵味。 material geology architecture nautical building 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 鹅卵石，卵石。 The material made from cobblestones. Examples : "The path to school was paved with cobblestone, a hard, gray material. " 通往学校的小路是用鹅卵石铺成的，这是一种坚硬的灰色材料。 material building 与AI对话词汇游戏阅读练习
