高考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：高考问答 时间：2024/05/09 11:43:28
They are ready to help others for a just cause, who even forget their own safety on the moment of truth.
?
高考问答