英语词汇“pitchstone”是什么意思，“pitchstone”的读音、用法及例句翻译-烛光网

词汇	pitchstone
释义	pitch·stone AHD[pĭchʹstōn'] D.J.[ˈpɪtʃˌstəʊn]K.K.[ˈpɪtʃˌston]n.（名词） Any of various volcanic glasses distinguished by their dull pitchlike luster.松脂石：某种火山玻璃，以其暗似沥青的光泽而著名 Etymology语源 Translation of German Pechstein 德语 Pechstein的翻译
随便看	locked jaw locker locker room locker-room lockers locker–room locket lockets Lockhart Lock Haven University of Pennsylvania locking locking lockjaw lockkeeper lockmaster locknut lock-on lockout lockouts Lockport locks lockset locksmith lock step lock stitch

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