英语词汇“switch hook”的读音、翻译、释义、用法及例句-语文网

词汇	switch hook
释义	switch hook 叉簧开关，挂钩开关一种电话机上的开关，它与支撑受话器或把手的结构相关联。操作时把受话器或把手从支撑物上移走或重新放回。
随便看	three-point arbitrage three-point landing three-point turn three-position modulation three-quarter three-quarters three-ring circus three R's three Rs threescore threesome three-square three-star three-state gate three-state logic three tiered market three-tier rate system three value simulation three-way three-way handshake three-way-handshake three-wheeler thremmatology threnetical threnodial

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