grand bargain精确的中文翻译？

Grand Bargain..
1. 大交易，协议
2.大谈判

例句
1. Last week, leaders of major industry groups, unions, civic groups and government ministries struck a 'grand bargain for social unity.
上周，重要工业组织、工会、民间组织和政府部门的领导人达成了一项“社会团结大协议”。

2.If there is to be no grand bargain, lesser steps may be taken.
“大协定”不通过的话，其它相应措施可能要少一些。

3.Americans debate whether a “grand bargain” might bury the hatchet.
美国人正为是否一笔“大买卖”能平息战乱而争论不休。

4.Many thoughtful diplomats have called for just such a “grand bargain” between America and Iran.
很多深思过的外交官呼吁美国和伊朗进行一场合适的“全盘交易”。

5.There is a powerful case for a grand bargain that overhauls the tax system, Social Security and Medicare all at once.
对税制、社会保障和医疗保险同时进行全面修改的全方位谈判，具有影响力。

6. In theory, a grand bargain beckons in which energy-short Chile would grant Bolivia use of a port and transport corridor in return for access to its large reserves of natural gas.
从原则上讲，两国正准备达成一个宏