[ 复数 spools 第三人称单数 spools 现在分词 spooling 过去式 spooled 过去分词 spooled ]
N-COUNT A spool is a round object onto which thread, tape, or film can be wound, especially before it is put into a machine. (线、磁带或胶卷的) 卷轴
...the hissing of a tape rewinding on its spool.
…磁带在卷轴上倒转时的嘶嘶声。
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