中国人民依靠洋油的日子已经一去不复返了.The days when the Chinese people had to rely on imported oil are gone forever.用 洋油 的日子已经一去不复返了.The days when we used " foreign oil " are gone.我们使用洋油的日子一去不复返了.The days are gone forever when we used for...

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“洋油”的拼音为：yáng yóu ...