英语词汇塑料是必须的是什么意思，塑料是必须的的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	塑料是必须的
释义	DEFINITIVE EXAMPLES 权威例句〔casing〕The plastic was necessary because cardboard casing did not have the required strength.塑料是必须的, 因为硬纸板外壳材料达不到强度要求。外研社新世纪
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英汉汉英翻译词典包含1679246条英汉翻译词条，基本涵盖了全部常用英语单词及常用语的翻译及用法，是英语学习及翻译工作的有利工具。