There are three main types of contract(s).

有三种主要的合同。

《牛津词典》

The premise was that the common law of contract lacked sufficient safeguards for workers against arbitrary conduct by management.

其前提是，普通合同法缺乏使劳动者不受管理层随意行为影响的充分保障。

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Earlier this month CIA director Panetta banned the use of contract - that is,non-employee - interrogators and ordered the agency's network of secret prisons to be shut down.

VOA: standard.2009.04.17

Gets off Scott free in five years when the other guy gets out, he might run into a situation where Yeah, so a short version of that is, it's a different kind of contract.

其中一个跑掉了,但是五年后,坐牢的就会回来报复,对,简而言之,这不是一般的协议

耶鲁公开课 - 博弈论课程节选

A perpetuity is an asset or a contract that pays a fixed amount of money each time period, forever.

永续年金是一种财产或者合同,规定在每一时间段内,支付一定数量的货币,直至永远

耶鲁公开课 - 金融市场课程节选

Broadfoot moved to Rangers under freedom of contract in 2007 after five seasons with St Mirren.

BBC: Kirk Broadfoot to stay on at Rangers

These causes of actions include breach of contract, intentional interference with contractual relations, and defamation.

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Of course, the many nuances of contract law should keep attorneys busy for years.

FORBES: Collateral Damage