通用飞机

general-purpose(/utility)aircraft

• sidewalk
• sideways
• sight
• sighting
• sightseeing
• sign
• signal
• signature
• signboard
• signer
• significance
• significant
• significantly
• signify
• sign language
• signpost
• silence
• silencer
• silent
• silently
• silk
• silky
• silly
• silver
• silvery