Traditional theory and institution focus on the subrogation institution's function on protecting the obligation right, while modern ones pay more attention to realizing it.

传统理论与制度强调代位权保全债权的功能，而现代理论与制度则更注重代位权实现债权的功能。

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An option is a derivative contract that gives the purchaser the right, but not the obligation, to buy or sell an asset at a certain price.

期权是一种只给买方带来权利，而不需买方承担义务，使其可在未来以某一确定价格买卖资产的衍生品。

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You have the right and the obligation to love yourself first!

你有权利、也有义务先去爱自己！

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Not only should one seek peace but we have an obligation, he says, to lay down our arms, to lay down our right to all things on the condition that others around us are prepared to do so as well.

我们不仅是应该寻求和平,还有义务来放下自己的武器，在周围的人准备同样作的情况之下,放弃我们对一切事物的权利。

耶鲁公开课 - 政治哲学导论课程节选

He should have asserted that the federal government had neither the obligation nor the right to stop the publication of a book.

NEWYORKER: Money Unlimited

Ultimately, our nation, like all nations, has the right and obligation to control its borders and set laws for residency and citizenship.

WHITEHOUSE: President Obama on Comprehensive Immigration Reform

He criticized states that argued for "the right and obligation to use force pre-emptively" to head off perceived threats, but he urged the Security Council to figure out how to deal with similar questions in the future.

CNN: Chirac: Iraq war undermined U.N.