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1. The company's unregulated felling practices have been the subject of numerous complaints.
该公司的无监管砍伐做法引起了众多投诉。
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2. The forestry department has launched an investigation into the unregulated felling activities in the area.
林业部门已经对该地区无监管砍伐活动展开了调查。
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3. The environmentalists are calling for stricter regulations to prevent further unregulated felling.
环保人士呼吁实施更严格的法规，以防止进一步的无监管砍伐。