conversation [名词] 对话 Ex: I overheard an interesting conversation at the coffee shop . 我在咖啡店无意中听到了一段有趣的对话。
suggestion [名词] 建议 Ex: We welcome any suggestions for improving our customer service . 我们欢迎任何改善我们客户服务的建议。
note [名词] 便条 Ex: John passed a funny note to his classmate during the boring lecture . 约翰在无聊的讲座中给他的同学传了一张有趣的纸条。