split the difference 折中，妥协，互相让步

　　Okay, let's split the difference and make it 10.

　　我们各让一步，十块钱吧！

　　They are trying to split the difference to achieve a good result.

　　他们试着在相互妥协，以求一个好的结果。

　　疯狂练习吧！