S1E1I1F4
7 points
SEIF is validvalid
a long, narrow sand dune [n SEIFS]
(Arabic) a long sand-dune lying parallel to the direction of the wind that forms it [n -S]
a long, narrow sand dune [n SEIFS]
(Arabic) a long sand-dune lying parallel to the direction of the wind that forms it [n -S]