It describes a go-between.

VOA: special.2009.01.25

Now I do want to go back to the relationship between Derrida and Levi-Strauss.

现在我想回到,德里达和列维，施特劳斯之间的关系。

耶鲁公开课 - 文学理论导论课程节选

Thailand has been acting as a go-between for the Burmese authorities and the KNU to try to end the fighting, but with little success.

VOA: standard.2009.06.09

He says the promotion of democracy should go hand in hand with efforts to end regional conflicts - in particular, between the Arab world and Israel.

VOA: standard.2010.05.19

When the South Korean defense ministry originally announced this exercise, its official said the American aircraft carrier would go into the Yellow Sea -- between the Korean peninsula and China.

VOA: standard.2010.07.26