Seif dune
赛夫沙丘，蛇形砂丘
🧩 词语组成解析
赛夫沙丘(顺着风向的长沙丘)
dune
[dju:n]
n. （由风吹积成的）沙丘;
🗣️ 情景例句
What's that?
那是什么？
What do you mean by that?
你这话是什么意思？
She then began to make up her face.
然后她开始打扮起来。