alternating group

例句：

1. 1. The team consists of a changing mix of players, each with their own skills and strengths.
   这个团队由不断变化的球员组成，每个人都有自己的技能和优势。
2. 2.The company is known for its ability to adapt to change and its willingness to invest in new technologies.
   该公司以其适应变化的能力以及投资新技术的意愿而闻名。
3. 3. The research suggests that the use of alternate energy sources could significantly reduce carbon emissions.
   研究表明，使用替代能源可以显著减少碳排放。