I had heard through the grapevine that he was quite critical of what we were doing.

我已经私下听说他对我们的工作十分挑剔。

《柯林斯英汉双解大词典》

I heard it through the grapevine.

我听得是小道消息。

youdao

I heard the story through the grapevine.

那个故事我是从小道消息听到的。

youdao

That is so because reports received through the grapevine are supposed to be secret.

VOA: special.2009.02.22

One of their big Motown hits was "I Heard It through the Grapevine."

VOA: special.2009.05.11

landed at Number 8,while "I Heard It Through The Grapevine" claimed the Number 7 position.

VOA: standard.2009.12.18

Let me begin by quoting a few lines from that classic song, I Heard it Through the Grapevine.

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Rosen heard through the grapevine at his clinic that Robert Pritzker, the Chicago billionaire industrialist, was also a patient there.

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Through the grapevine, he heard that his old boss was blackballing him.

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