就在五个月以前的一个晚上，我碰巧在楼上，窗户是开着的。的翻译：One evening in five months ago, I happened to be upstairs, the window was open. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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One evening in five months ago, I happened to be upstairs, the window was open.

On in a five month before evening, I in the building, the window was opening by chance.

正在翻译，请等待...

One evening in five months ago, I happened to be upstairs, the window was open.