Câu ví dụ #1
1. The smell from the lake has become worse over the past week, and a thick layer of blue-green algae and dead fish have appeared on its surface.
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2. A species of algae has invaded the Sword Lake in Hanoi, turning the water a strange green color.
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3. Professor Duong Duc Tien said that climate change was behind the invasion, and that the blue-green algae needed to be removed.
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4. A representative from the Hanoi Drainage Company said that the rapid growth of algae and moss was draining oxygen from the water.
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5. The company is working with Hanoi University of Science and Technology to transplant endemic algae to balance the environment.
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