求翻译：本合同文本由"深圳巿二手房网上交易系统"生成，买卖双方经协商一致，可以对合同条款进行修改、补充，但修改、补充的内容应当符合法律、法规及本房地产项目土地使用权出让合同的规定。是什么意思？

The text of the contract by the "second-hand housing market in Shenzhen online trading system" to generate, both parties, by consensus, on the terms of the contract can be modified to add, but modified to add the content should comply with laws, regulations and the land use right transfer of real es

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This contract text by the " Shenzhen 巿 second-hand house net on the transaction system " production, the round turns is consistent after the consultation, may carry on the revision, the supplement to the contract provision, but revises, the supplement content must conform to the law, the laws and re

The text of this contract by "Shenzhen second-hand House online trading system", both buyers and sellers by consensus, can modify the terms of the contract, Supplement, modify, add contents should comply with the laws, regulations and provisions of the present contract of land use right for real est

The text of this contract by "Shenzhen second-hand House online trading system", both buyers and sellers by consensus, can modify the terms of the contract, Supplement, modify, add contents should comply with the laws, regulations and provisions of the present contract of land use right for real est