have conversation with有复数吗

　　The conversation sowed a tiny seed of doubt in his mind.

　　那次谈话在他的心中埋下了一颗小小的怀疑种子。

　　she deftly moved the conversation to safer territory.

　　她机灵地把交谈转到了更稳妥的话题。

　　I tried to make polite conversation, but he wasn't having any.

　　我试过礼貌地同他谈一谈，可他不愿意配合。

　　An old man was in hilarious conversation with three young men.

　　一位老人在和三位年轻人兴高采烈地交谈。

　　He was branded a prying sneak for eavesdropping on intimate conversation.

　　他被指责为一个刺探别人隐私的人，总是偷听别人的亲密谈话。