牍以木牍为多。把字写在狭长的竹片或木条上叫做竹简或木简；写在较宽的竹片或木板上叫竹牍或木牍。
出土的木牍竹简极有历史价值。
The excavated wooden tablets and bamboo slips are of great historical value.
四川省青川县出土的秦国木牍纪录了当时的《为田律》及执行情况，具有重要的史学意义和文学意义。
The inscribed wooden slips of Qin State unearthed from Qingchuan County, Sichuan province recorded the implementation of "Field Work" at that time, with significance in both history and literature.
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