So the Mosaic covenant is neither unilateral-- this is now a bilateral covenant, mutual, reciprocal obligations--nor is it unconditional like the other two.

所以摩西契约不是单边同意的-,是双边契约，包含了平等和互惠的责任，这个契约也不像其他两个是无条件的。

耶鲁公开课 - 旧约导论课程节选

A sense of reciprocity is establishedbetween the tow truck and the person who helps the tow truck out of being stuck -a fine sense of reciprocity, so the expectation is that there will be a moral.

在托运车和把托运车从困境中解救出来的人之间,建立起了一个互惠主义关系,相互帮助，一个很好的感觉，所以期待是这其中会有一个寓意。

耶鲁公开课 - 文学理论导论课程节选