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单词 sap tie
释义 sap tie
noun
: a railroad crosstie having sapwood wider than one-fourth the width of the tie on the top at a point between 20 and 40 inches from the middle of the tie
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英语词典包含332784条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

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更新时间:2026/5/28 12:30:58