alternative form

例句：

1. 1. The company is considering several alternative forms of energy to reduce its carbon footprint.
   该公司正在考虑几种替代能源的形式，以减少其碳足迹。
2. 2.Instead of using plastic bags, people can use alternative forms like cloth or paper bags.
   人们可以不用塑料袋，而改用布或纸袋。
3. 3. The teacher suggested that students should learn a second language as an alternative form of education.
   老师建议学生应该学习一门第二语言作为教育的一种替代方式。