dunes 是 dune 的複數duneKK [ˋdun] /ˈdun/名詞1沙丘、砂丘We climbed a steep dune to watch the sunset over the desert.我們爬上一座陡峭的沙丘,看沙漠上的日落。2沙丘Wooden walkways protect the fragile dunes along the coast.木棧道保護著海岸邊脆弱的沙丘。