英语翻译Said Contract sets forth the entire Contract and agreeme

英语翻译
Said Contract sets forth the entire Contract and agreement between the Paties pertaining to said work and supersedes all inquiries,proposals,agreements,negotiations and commitments ,whether written or oral,prior to the date of execution of this Contract,pertaining to said Work or this Contract.The provisions of this Contract may be changed only by a writing executed by the Parties to this Contract.Trade custom and trade usage are superseded by this Contract and shall not be applicable in interpretation of performance of this Contract.
因为这是专业的合同英语,我已经试了很多翻译机器,也自己试着来翻译了,但是还是不行,没有专业术语,也不通顺