Far 的比较级是 farther 或 further，以下是用 farther 或 further 造句的示例：
1. John can jump farther than I can. 约翰跳得比我远。
2. If you want to learn more, you should read further in the book. 如果你想了解更多，你应该进一步阅读这本书。
3. We need to go farther down the road to reach the next town. 我们需要沿着这条路再往前走才能到达下一个城镇。
4. She decided to study further to improve her chances of getting a better job. 她决定继续深造以提高获得更好工作的机会。
5. They walked farther into the forest, hoping to find a campsite. 他们走进森林深处，希望能找到一个露营地。
6. The company is planning to expand its business further into international markets. 公司计划进一步将业务扩展到国际市场。
7. After graduating from college, she wanted to travel farther and see more of the world. 大学毕业后，她想去更远的地方旅行，看看更多的世界。
8. He had to move farther away from the city to find a cheaper place to live. 他不得不搬到离城市更远的地方去找一个更便宜的地方住。
9. The scientists are conducting further research to understand the causes of the disease. 科学家们正在进行进一步的研究以了解这种疾病的原因。
10. If you have any questions, please feel free to ask me further. 如果你有任何问题，请随时进一步向我提问。
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