高校问答是一部内容开放、自由的互动网络百科全书客观、专业、权威的知识性百科全书
来源:百度文库 编辑:高校问答 时间:2024/05/02 18:37:28
Please don't talk loudly.Pay attention to the way you speak or what you say and your behaviour,Be a civility.