semiprecious stone

同义词释义

1)semiprecious stone,次等宝石2)inferior quality,次等质量3)secondary subject,次等学科4)under rate,次等率5)subtopia,次等市郊6)off oil,次等油7)broken paper, retree,次等纸8)low ordinary,次等的9)low-grade fuel,次等燃料10)off-oil,次等油