求翻译：该供应商是由学校的Anson 推荐的，他本人一直与此供应商有着良好的合作关系，该供应商也非常值得信任。此供应商本身只能开具税率为7%的发票。是什么意思？

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If the supplier is by having the school's Anson recommended, as he himself has been working with the providers can have a good relationship of cooperation, and the Vendors were also very trustworthy. The supplier itself can only issue a tax rate of 7% of the invoice.

This supplier is by the school Anson recommendation, he always has with this supplier the good cooperation, this supplier extremely is also worth trusting.This supplier itself only can draw up the tax rate is 7% receipt.

The supplier is recommended by the school of Anson's that he always has good relations of cooperation with this vendor, the vendor is trustworthy. The vendor itself can only issue tax invoices with a 7%.