| 类别 | 例句 | 适用场景 |
|---|---|---|
| 开头 | Recently, the problem of environmental pollution has aroused people's concern. | 引入环境问题话题 |
| 衔接 | However, the difficulty lies in finding effective solutions to this problem. | 转折，指出问题关键 |
| 观点 | Different people hold different attitudes toward the use of plastic bags. | 阐述不同观点 |
| 建议 | It is high time that we took effective measures to protect our environment. | 提出解决方案或建议 |
| 结尾 | Only by doing so can we build a better future for ourselves and our descendants. | 总结全文，升华主题 |
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