词汇	DUMBELS
释义	DUMBELS 🌏DUMBBELLS
随便看	shallow shield tunnel shallow shoal shallow shock shallow shrinkage method shallow sill shallow silo shallow slide shallow sliding shallow slot shallow-slotted polystyrene board shallow smooth blasting technology shallow soft ground shallow soft stratum shallow soil shallow soil displacement shallow soil moisture content shallow soil seeded rice shallow soil tunnel shallow sound field shallow sounding shallow sowing shallow space shallow spherical shallow spherical sandwich shell shallow spherical shell