grapevine

n.葡萄藤；葡萄树；秘密信息来源

The grapevine creeps along the wall. 葡萄藤沿墙蔓延。

People said they looked like a grapevine. 人们说它们看起来像葡萄藤。

I heard it through the grapevine. 我是经谣传听到这事情的。

I heard on the grapevine that you're leaving. 我听小道消息说你要离开。