sierra

n long range of mountains with steep slopes and a rugged outline (esp in Spain and Spanish America) 锯齿山脊（尤指在西班牙及西班牙语系的美洲国家的）.

side-track, side-view, side-whiskers, side-winder, sideboard, sidekick, sidelight, sideline, sidelong, sidereal, sideshow, sidestep, sidewalk, sideway, sideway(s), sideways, siding, sidle, siege, sienna, siesta, sieve, sift, sifter, sigh, sight, sight-read, sight-reading, sight-screen (also screen), sighted, sighting, sightless, sights, sightseeing, sightseer, sign, sign in, sign language, sign on, signal,