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单词伸缩管
例句 DEFINITIVE EXAMPLES 权威例句〔drawtube〕A tube that slides within another tube, as in a small hand telescope.伸缩管:在另一管筒中滑动的管筒,如小型手持望远镜中的伸缩管美国传统〔slide〕He oiled the slide of his trombone.他给长号的伸缩管上油。韦氏高阶
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