1.谈生意 It was indecent of them to talk business at the funeral.\x09
他们在葬礼上谈生意,真不像话
2.谈公事.Don't talk about business while we are dining.
吃饭时别谈公事.
3.讲正事 .Now let's talk business.\x09
现在咱们谈正事这里是take，不是talk