“Hammer out”是一个动词短语，意为“通过争论或讨论，最终达成某项协议或解决办法”。可以说“hammer sth out ”，也可以在“hammer out”后接名词。常见的搭配有“hammer out a deal/agreement”，表示“敲定一笔交易或达成一项协议”。

例句

It might be complicated, but both our companies want to work together, so why don't we meet and try to hammer out a deal?

这也许会很复杂，但是我们双方公司都希望为之努力、并肩工作，所以大家何不开会讨论，试着达成交易呢？

After five years, we finally managed to hammer out an agreement with the insurance company.

我们终于在五年后和保险公司达成了协议。

The customers were relieved when the two mobile operators hammered out a new agreement to cut roaming charges.

顾客们听说两家移动运营商就减少漫游费的问题达成了新的协定后，终于松了一口气。