如果私人计划要求供应商保持同等的生产力节省费用，并且拒绝让供应商将额外的成本转嫁给他们，那么节省的成本可能会高得多。
If private plans demanded similar productivity savings from providers, and refused to let providers shift additional costs to them, the savings could be much larger.
Drax目前已有生物质能供应合同，但其以商业机密为理由拒绝透露能源材料的来源。
Drax has biomass supply contracts in place but refuses to divulge where the material will come from, citing commercial confidentiality.
苹果公司拒绝回应工人信件并且要求一位记者撤回供应商报告。
Apple declined to comment on the workers' letter and referred a reporter back to its supplier report.
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