to hear something on the grapevine 小道消息、道聽塗說 *grapevine 葡萄藤
Definition: to get to know something because it has been passed informally from person to person, rather than from some official source.
1. The students heard about the closing of the college on the grapevine, long before they were told officially by the college authorties.
2. I heard on the grapevine that Sara has get divorced and were quite hurt that she had not told us in person.
to hear something through the grapevine 小道消息、道聽塗說
1) to hear something through the grapevine
2) to hear something on the bush telegraph
e.g. The fact that the firm was being taken over was supposed to be a great secret, but all the staff heard about it on the bush telegraph long before the takeover was announced.
3) a little bird told me
e.g. A little bird told me that Jill and Peter are now more than just friends.