it✀s water under the bridge 这句在口语里是什么意思？

it's water under the bridge
无关紧要；覆水难收

例句:

1.
Don't worry about that mistake, it's water under the bridge.
别担心这个错误，它已经无关紧要了。

2.
Last year's dispute is water under the bridge now.
去年的争论已是覆水难收了。

3.
My sister and I fought when we were children, but that's water under the bridge.
小时候我姐姐和我是死对头，不过那都是往事了。

Don't worry about that mistake, it's water under the bridge.

别担心这个错误，它已经无关紧要了。

No, that was a long time ago. It's all water under the bridge.

不，那已经过去很久了。只不过是付诸流水。

No, that was a long time ago , it's all water under the bridge.

是的，那已经是很久以前的事了，早已事过境迁了。

Diana850606和 lnmen3312正解，不相干的事情，已经无关紧要的事了的意思。

已成事实，无法改变或者无关紧要~~~都可以放这句

直译是水在桥底下 但是我想 有水到渠成的意思吧 希望能够帮到你~

直译为桥下的水，深一点就是这是无法改变的事，也可译为无法改变的过去，