One of the most urgent problems is how to dispose of the pollution from the large-scaled poultry and livestock breeding farms.
其中一个亟待解决的问题是规模化畜禽养殖业污染的治理。
One of the most urgent problems is how to dispose of the pollution from the large-scaled poultry and livestock breeding farms.
其中一个亟待解决的问题是规模化畜禽养殖业污染的治理。
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