switchblade是什么意思(switchblade的用法)
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一、switchblade是什么意思
1、switchblade 弹簧刀
2、switch,转换,blade,刀片。
二、switchblade的用法
1、switchblade (n.)
2、also switch-blade, type of folding pocket knife, 1932, from switch (n.) + blade. So called for the "switch" which is pressed to spring the knife open. Earlier a similar tool was known as an Arkansas toothpick (1837) and a clasp-knife (1755).
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