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
Please have the porter bring my bags up.
请让搬运工把我的箱子搬到楼上去。
Scientists contribute to the well-being of mankind.
科学家为人类造福。
Though the costume consisted only of a sheet, it was very effective.
尽管化装服仅由一个被单制成，却十分逼真。