polythene-aluminium-steel-polythene

[pɒlɪ'θiːnæljʊm'ɪniəmst'iːlpɒlɪθ'iːn]     [pɒlɪ'θiːnæljʊm'ɪniəmst'iːlpɒlɪθ'iːn]    
  • n. 聚乙烯-铝-钢-聚乙烯

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