“Mainland China”常用于外媒，但是，中国的官方文件并不使用，而是使用“mainland of China”或“Chinese mainland”等指代港澳台以外的中国地域。

比如，《习近平在庆祝香港回归祖国25周年大会暨香港特别行政区第六届政府就职典礼上的讲话》中提到：

“——回归祖国后，香港在国家改革开放的壮阔洪流中，敢为天下先，敢做弄潮儿，发挥连接祖国内地同世界各地的重要桥梁和窗口作用，为祖国创造经济长期平稳快速发展的奇迹作出了不可替代的贡献。香港积极融入国家发展大局、对接国家发展战略，继续保持高度自由开放、同国际规则顺畅衔接的优势，在构建我国更大范围、更宽领域、更深层次对外开放新格局中发挥着重要功能。香港同内地交流合作领域全面拓展、机制不断完善，香港同胞创业建功的舞台越来越宽广。”

官方给出的译文为：

“Since its return, Hong Kong, amid China's monumental reform and opening-up efforts, has been breaking new ground, functioning as an important bridge between the Chinese mainland and the rest of the world. As a result, it has made irreplaceable contributions to our country's economic miracle marked by long-term, stable, and rapid growth. Proactively integrating itself into the country's overall development and carving out its role in national strategies, Hong Kong has maintained its strengths in its high degree of openness and in aligning with international rules. In doing so, the region has been playing an important role in raising China's opening up to a higher level with wider coverage and scope. With continuously expanding areas and enabling mechanisms for Hong Kong's cooperation and exchanges with the mainland, people in Hong Kong now have better opportunities to start their own businesses and make achievements.”

另外，《全国人大常委会工作报告（2017）》也提到：

“境外非政府组织境内活动管理法将境外非政府组织在中国境内的活动和管理纳入法治轨道，既有利于保护其合法权益，促进正常交流与合作，也有利于依法加强监管，维护国家安全和社会公共利益。”

官方给出的译文为：

“The Law on Administration of Activities of Overseas Nongovernmental Organizations in the Mainland of China brings the administration of activities of overseas NGOs in the mainland of China into line with the rule of law. It will help to protect their legitimate rights and interests and promote exchange and cooperation, while also helping to strengthen China's law-based oversight and regulation and safeguard China's national security and public interests.”

因此，在将中文文件翻译为英文的过程中，为免歧义，不宜使用“Mainland China”，最好按照官方的译法处理译文。

来源：

www.china.org.cn