名词
中文翻译：路缘石
同义词：
['pavement stone', 'curbstone']
例句：
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1.The kerbstones are smooth and easy to walk on.
路缘石光滑易走。
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2.The city has been working on improving the quality of its kerbstones.
该市一直在努力提高其路缘石的质量。
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3.The new road was built with high-quality kerbstones to improve safety.
新道路的建设使用了高质量的路缘石，以提高安全性。