因此，“文件”是指自然人或法人在活动中生成或接收的，作为该活动的手段和留存的档案记录。

Therefore, records are documents made or received by a physical or juridical person as means and residue of its activity.

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如果该资料和文件属于不能归还的形式或已经复制或转录到其他资料或载体中，乙方应交由甲方进行删除，且乙方保证不再留存复制件。

If the data or file is in the non-returnable form or has been copied or re-recorded to other data or carrier, Party B shall deliver it to Party A to delete and ensures that no copy is retained.

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留存并保管所有合同、租约、保险合同、执照及所有法律文件和财务文件。

Keep and safeguard all contracts, leases, insurance policies, licenses, and all legal and financial documents.

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