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磨穿铁砚 - Idiom detail

Idiom 磨穿铁砚
Pinyin mó chuān tiě yàn
Description 把铁铸的砚台都磨穿了。比喻读书用功,有恒心。
Example 坐破寒毡,~。★元·范子安《竹叶舟》第一折
Derivation 宋·陆游《寒夜读书》诗韦编屡绝铁砚穿,口诵手抄那计年。”
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