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| utilisation of pesticides Use of chemical or biological substances to deliberately kill unwanted plants or animals (使用化学的或生物物质来杀死不需要的植物或动物。) | |||
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| utilisation of pesticides Use of chemical or biological substances to deliberately kill unwanted plants or animals (使用化学的或生物物质来杀死不需要的植物或动物。) | |||