英语词汇铅笔芯是什么意思，铅笔芯的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-觉斋网

单词	铅笔芯
释义	DEFINITIVE EXAMPLES 权威例句Both diamonds and pencil lead, or graphite, are made of pure carbon.钻石和铅笔芯，或石墨都是用纯碳制成的。剑桥国际
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