名词
中文翻译：路标石
同义词：
['stone', 'landmark']
例句：
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1. The road was so bumpy thatthe stone was worn smooth by the wheels.
这条路太颠簸了，石头都被车轮磨得光滑了。
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2. The old stone bridgestill stands as a reminder of the town's history.
这座古老的石桥仍然矗立着，提醒着小镇的历史。
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3. Theroad stone is a symbol of the town's resilience in the faceof adversity.
路标石是这个城镇在逆境中坚韧不拔的象征。