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petrochemical▼noun[UK: ˌpe.trəʊˈk.e.mɪk.l̩] [US: ˌpetro.ʊˈk.e.mɪk.l̩]
petrochemicals▼◼◼◼noun[UK: ˌpe.trəʊˈk.e.mɪk.l̩z] [US: ˌpetro.ʊˈk.e.mɪk.l̩z]
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