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spool的复数形式为：spools...
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spool的现在进行时为：spooling...
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spool的现在完成时为：spooled...
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spool的第三人称单数（三单）为：spools...
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spool的一般过去时为：spooled...
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A ratchet mechanism transfers the thread from spool to bobbin.一种棘齿装置把线从线轴转到梭心上。a spool of thread一轴线On dictation equipment, a spool on which magnetic tape is wound.在口述记录设备上, 一种卷绕磁带的轴....
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A ratchet mechanism transfers the thread from spool to bobbin.一种棘齿装置把线从线轴转到梭心上。On dictation equipment, a spool on which magnetic tape is wound.在口述记录设备上, 一种卷绕磁带的轴.a spool of cotton一轴棉线a spool of thread一轴线...
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spool的音标：spool的英式发音音标为：[spu:l]spool的美式发音音标为：[spul]...