I heard it through the grapevine 道听途说，以蛾传蛾

Meaning 意义
In my last post, I talked about the English slang, words of mouth, which is mostly referred to words of compliment or something positive. Today, I would like to talk about a similar slang "I heard it through the grapevine".  According to the Answer.com, grapevine refers to a vine on which grape grows and the whole phrase figuratively means:

• the informal transmission of information, gossip, or rumour from person to person.
• A usually unrevealed source of confidential information.

我前天在这里谈过英文俚语 Word of mouth，这是主要用于正面及赞美之传言，今天谈到类似俚语 Heard it through the grapevine，则多用于负面及小道消息。Grapevine 是指葡萄藤, 而整句等同中文 "道听途说" "以蛾传蛾" 非正式,八卦消息或谣言的传播。

Example 例子
I am using part of the lyrics of an American popular song of the same title. 我就以美国一首流行同名歌曲部分歌词作例子，并作出中文及西语翻译如下:

Don't you know that I heard it through the grapevine
Not much longer would you be mine
Oh I heard it through the grapevine
Oh and I'm just about to lose my mind
Honey, honey yeah

¿No sabes que lo escucha a través de la vid 
No mucho más largo que el mío 
Oh, yo lo oí a través de la vid 
Ah y estoy a punto de perder mi mente 
La miel, sí la miel 

你可知道我听到一些谣言你快不属于我，
哦我听到这些谣言真的使我发疯，宝贝儿，宝贝儿哦！