1.(utter)说；讲
2.(discuss)+ business, politics谈论；讨论
Let's talk business.我们谈谈正事吧。
3.<非标准>(speak)+ language用…交谈；讲；说
The two women were talking French.两名妇女正在说法语。
4.to be talking … or to be talking about …
(used to emphasize importance or extent)说的是…
We're talking megabucks here!我们这次谈的可是上百万美元的买卖！