词汇	spongy gum
释义	spongy gum 医软龈,海绵状龈
随便看	lithographic printing machine lithographic printing press lithographic procedure lithographic process lithographic, process lithographic proof print press lithographic proof-print press lithographic resolution lithographics Lithographic Simulation lithographic slate lithographic stone lithographic stone engraver Lithographic stone engraver lithographic STONES lithographic system lithographic texture lithographic transfer lithographic varnish lithographic works of art lithographic writing ink lithographies lithographing lithographist lithographize