合同没有签署因而没有约束力。

The contract was not signed and has no binding force.

youdao

如果他们的合同没有遵循你的规则怎么办？

What if their contracts don't follow your own rules?

youdao

如果你对怎样起草一份合同没有线索，就看看Andy Clark的这篇文章。

If you have no clue of how to write a contract, take a look at this article by Andy Clark.

youdao

Why do you manage to get some cooperation between you and your roommates even without a written contract?

为什么即便没有书面合同,你一样可以和你室友合作得愉快

耶鲁公开课 - 博弈论课程节选

All right, so it might be that again, the problem with enforcement, although actually in 1880 America, it's not clear that they couldn't have enforced that contract.

好的,但是我刚才说了强制性的问题,虽然说那是1880年的美国,当时这种合同是否违法没有明确的界定

耶鲁公开课 - 博弈论课程节选

If you buy a house and you don't pay the mortgage, the contract says you lose the house-- you're out--you've got to pay or it goes back to the mortgage originator.

如果你抵押贷款买房,却没有还房贷,贷款合同规定,你将被取消赎回权,失去房子,所以你必须偿还贷款,否则你的原始贷款人就会收回房子

耶鲁公开课 - 金融市场课程节选