His complexion was colorless and he hadn't shaved.他面无血色，胡子也没刮。A chemist can analyze water into two colorless gases, hydrogen and oxygen.化学家能将水分解成无色气体氢和氧.The colorless platelets were filtered washed with cold methano...
The prospectors have discovered such minerals as calcite, quartz and asbestos here.探矿人员在这里发现了方解石 、 石英、石棉等矿藏.There is a great deal quartz in those mountains.那些山里蕴藏着大量石英.To this class of substance belong mica, porcelain, q...