pindexpolythene./pol-uh-theen/US // ˈpɒl əˌθin //UK // (ˈpɒlɪˌθiːn) //聚乙烯,聚酯薄膜,聚丙烯,聚苯乙烯Definitionsn.noun · 名词1. Chemistry, British.›polyethylene. Level 3More words in p →