Design by contract also makes explicit the contract definition that is more implicit in unit tests.

契约式设计也做了显式的合约定义，而在单元测试中这些更隐式。

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Conversely, if a trader expects the market to move downwards, they will make a short trade, which means they will enter their trade by selling a contract, and exit their trade by buying a contract.

相反，如果一位交易商期望商场下跌时，他们就会缩短交易时期，就是说他们从卖出一份合约开始交易，以买进一份合约终止交易。

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An interface is a contract provided by a service or a contract required by a reference.

接口是服务提供的契约或引用要求提供的契约。

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The author says Lead Belly's contract with the Lomaxes' prevented him from being represented by anyone else for five years.

VOA: special.2010.01.25

So, just random contract jobs until I discovered this company called Odeo, which was run by Evan Williams.

所以，我一直在打零工,直到我找到了一家叫奥德奥的公司，它是埃文·威廉姆斯经营的。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

Maybe it's not always the raider; it's that some employees had trusted in an implicit contract that they were offered by their employer.

也许也不都是这些公司蓄意收购者；,也许是一些雇员相信了他们雇主给他们的,暗示性承诺。

耶鲁公开课 - 金融市场课程节选

Sequentially, the decline in branded net contract customers was driven primarily by higher branded contract deactivations as a result of the launch of the iPhone 4S by three nationwide competitors in mid-October.

ENGADGET: T-Mobile lost more customers in Q4, will launch LTE in 2013 with AWS spectrum from AT&T

Scarabeo 9 is a semi-submersible drilling vessel recently built by Yantai Raffles, which will be on contract by Repsol YPF for deepwater exploratory drilling off Cuba.

FORBES: Cuba Chases 5 Billion Barrels of Undiscovered Oil; U.S. Groups Respond

So Boeing is left as the only bidder for a defence contract second only to the enormous Joint Strike Fighter contract won by Lockheed Martin in 2001.

ECONOMIST: EADS and America