sight-read

v [I, Tn] (be able to) play or sing (music) without previous study or practice （能）视奏或视唱（不经事先学习或练习）.

sideline, sidelong, sidereal, sideshow, sidestep, sidewalk, sideway, sideway(s), sideways, siding, sidle, siege, sienna, sierra, siesta, sieve, sift, sifter, sigh, sight, sight-reading, sight-screen (also screen), sighted, sighting, sightless, sights, sightseeing, sightseer, sign, sign in, sign language, sign on, signal, signal-box, signaller (US signaler), signally, signalman, signatory, signature, signature tune (also theme tune),