You may however wish to include a small buffer to allow for some negotiating room.

可是你想包括一个小缓冲允许一些洽谈室。

BabelWith.Me allows users to chat in more than 45 different languages. This is a great tool for negotiating room and guide rates.

Me允许用户通过超过45种语言进行聊天。

They want to throw in every possible requirement, including ones they don't really need, to give themselves more negotiating room when they have to give things up.

他们希望写进每一个可能的需求(包括他们并不真正需要的需求)，以便在不得不放弃时给自己留有更多商议的余地。