Listening Quiz: Tiết Kiệm Nước Với Quy Trình Nhuộm Mới – Easy Level

1. What is the conversation mainly about?
2. How much water can the new dyeing process save?
3. What does Olivia say about the colors produced by the new process?
4. What can be inferred about the new dyeing process?
5. Why does Olivia mention that the process costs more at first?

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