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dongle

noun
🔊/ˈdɒŋɡl/
🔊/ˈdɑːŋɡl/
 (computing计算机)
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  1. a small device that is used with a computer, especially to access protected software or the internet软件保护器；软件狗；硬件锁Topics Computersc2
    Word Origin1980s: an arbitrary formation.