Listening Quiz: Tư Vấn Xử Lý Sinh Học Tại Chỗ Cho Vùng Ô Nhiễm Dung Môi Clo – Medium Level

1. What is the conversation mainly about?
2. What does Robert say should be understood first?
3. What does Robert say they will inject to help bacteria grow?
4. How long does Robert say the process can take?
5. What can be inferred about the cleanup process from Robert’s advice?

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