Is it stronger or weaker than a real agreement,

它与一份实际契约有效的社会契约相比
an actual social contract?

效力孰强孰弱
In order to answer that question,

为了解答这个问题
we have to look hard at the moral force of actual contracts.

我们要深入理解实际契约道德约束力
There are really two questions here.

这实际上就变成了两个问题
One of them is how do actual contracts bind me or obligate me?

实际契约对人有怎样的约束或强制作用
Question number one.

这是第一个问题
And question number two,

第二个问题是
how do actual real life contracts justify the terms that they produce?

实际契约如何证明其产生的条例是正义的
If you think about it and this is in line with Rawls and Kant,

仔细想想这与罗尔斯和康德的观点是一致的
the answer to the second question,

第二个问题的答案是
how do actual contracts justify the terms that they produce,

实际契约如何证明其产生的条例是正义的