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首页 - 英汉词典 - P字开头的单词或词组 - primary materials

英语解释

primary materials

汉语翻译

【经】主要材料, 初级原料

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world export prices indexes of primary commodities and manufactured goods unassignable primary input toxin primary three primary colours three primary colors subtractive primary run-off primary rechargeable primary cell primary-tertiary alcohol primary-secondary alcohol primary-carrier flow primary yolk cells

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