Chat gravity refers to the degree of familiarity with another person, which, if you chance to encounter them on the street, will determine if you merely greet them in passing or stop to talk.

聊天重力指你跟另一個(gè)人的熟悉程度決定了你們?cè)诮诸^偶遇的時(shí)候是只打個(gè)招呼就過(guò)去，還是停下來(lái)聊一會(huì)兒。

For example:

We saw each other on the sidewalk and said ’hello’ to each other. But she was just a friend of a friend I’d only met once or twice before, and there wasn’t enough chat gravity to merit stopping and chatting.

我們?cè)诼愤呄嘤觯ハ啻蛄藗€(gè)招呼。不過(guò)，她只是我一個(gè)朋友的朋友，我們也只見(jiàn)過(guò)一兩次面，所以也就沒(méi)有足夠的聊天重力讓我停下來(lái)跟她攀談了。