英语词汇“pitchstone”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pitchstone
释义	pitchstone \ˈ ̷ ̷ˌ ̷ ̷\ noun Etymology: translation of German pechstein, from pech pitch + stein stone : a glassy rock that has a resinous luster and that contains more water than obsidian does
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