bury the hatchet = make peace 把武器都埋起来，表示“和解”的意思。

【范例对话】
A: Somebody told me that you and Doug had been quarreling over the construction site of the new building.
有人告诉我你和Doug争执起新楼的建造地点。

B: That's true, but we worked out the problem and decided to bury the hatchet.
是真的，但是我们已经解决了问题，并决定和解。

A: Glad to hear that. You guys have always worked well together.
听到那个消息很高兴。你们应该一起好好协调工作。

B: Well, once we came to the conclusion that we both had the same goal in mind, we put an end to our bitter feelings and made peace with each other.
是的，一旦我们得出结论我们有共同的目标，我们就会抛弃仇恨，彼此和解。