conversation
n. （非正式的）谈话，交谈；<旧>社交，交际
复数 conversations
例句
She was engrossed in conversation.
她聚精会神地谈话。
《牛津词典》
The subject came up in conversation.
谈话中提到了这个话题。
The conversation drifted onto politics.
谈话不知不觉就转到政治方面来了。
