《陈书·列传·卷二十七》
郑灼家贫，他抄写义疏日以继夜，笔毫用尽，每次都削而用之。
灼家贫，抄义疏以日继夜，笔毫尽，每削用之。
Zheng Zuo was poor, so he copied the edict day and night, using up all his writing brushes and having to carve them into shape to continue using them.
<s>[INST] Render the following Classical Chinese text into fluent English: 灼家贫，抄义疏以日继夜，笔毫尽，每削用之。 [/INST] Zheng Zuo was poor, so he copied the edict day and night, using up all his writing brushes and having to carve them into shape to continue using them.</s>
Render the following Classical Chinese text into fluent English: 灼家贫，抄义疏以日继夜，笔毫尽，每削用之。
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Zheng Zuo was poor, so he copied the edict day and night, using up all his writing brushes and having to carve them into shape to continue using them.
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