| 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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