To do this, you'd need to modify the source code for Order and Contract to implement the new interface.

要做到这一点，您需要修改 Order 和 Contract 的源代码，以便实现新的接口。

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Contract (order) processing and keeps track on the implementation of the order and contract archive.

负责合同（订单）处理及跟踪合同和订单执行情况并保存记录；

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But regrettably, the original authors of Order and Contract weren't farsighted enough to base their design on interfaces.

但令人遗憾的是，Order和Contract的最初作者没有足够的远见来把它们的设计建立在接口上。

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In order to devise an insurance contact that does this job, we have to have a contract between an insurance company and the insured.

要想设计一个保险合约,要想做这项工作，我们得在保险公司和,被保险人之间建立一个合约。

耶鲁公开课 - 金融市场课程节选

Add to this mix legal and regulatory requirements that require extremely careful reporting of information, and it becomes clear that corporations must implement sound legal contract management principles in order to ensure the efficient use of both resources per se and those specifically within the scope of those agreements.

FORBES: Legal Contract Management And The Modern Enterprise

McCourt could sell a minority share of The Dodgers in order to pay his Bills until The Television Contract expires and a New TV Rights Deal is necessary.

FORBES: What The Dodgers' Bankruptcy Is Really All About

As a result of the dispute, the U.S. Air Force said it asked SNC and Embraer for a stay on the contract order on March 11, shortly after Beechcraft filed the complaint on March 8.

FORBES: U.S. Air Force Sides With Brazil's Embraer In Fighter Plane Dispute