在茫茫考研之路上，英语作为一项关键技能，其备考不容忽视。以下是根据21级考研英语试卷关键词原创的最佳答案：
1. 关键词：全球气候变化
答案：Global climate change poses a significant threat to our planet, necessitating urgent and coordinated international efforts to mitigate its impacts.
2. 关键词：科技创新
答案：Technological innovation has revolutionized various sectors, significantly improving efficiency and quality of life.
3. 关键词：文化交流
答案：Cultural exchange fosters mutual understanding and respect among different societies, enriching global diversity.
4. 关键词：可持续发展
答案：Sustainable development is crucial for ensuring the well-being of current and future generations, balancing economic growth with environmental protection.
5. 关键词：社会公平
答案：Promoting social equity is essential for creating a harmonious society where all individuals have equal opportunities and rights.
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