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单词 make-and-break
释义 make-and-break
 /mayk"euhn brayk"/,  adj.  
 noting or pertaining to a device, operated by an electric current, for automatically opening or closing a circuit once it has been closed or opened by a mechanical springlike device, as in a doorbell.
 [1855-60]
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更新时间:2025/3/10 9:15:22