| 释义 |
seif dune AHD[sāf, sīf] D.J.[seɪf, saɪf]K.K.[sef, saɪf]n.（名词）- A sharp-crested longitudinal sand dune common to the Sahara and ranging up to 300 m (900 ft) in height and 300 km (200 mi) in length.剑型沙丘：尖冠状纵形沙丘，常见于撒哈拉沙漠，可高达300米（900英尺），蜿蜒300公里（200英里）
- Arabic sayf [sword] Arabic sayf [sword]
- from Aramaic saypā ; akin to perhaps ultimately akin to Greek xiphos from Aramaic saypā ；类似于 perhaps ultimately akin to Greek xiphos
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