switchboard
/'swɪtʃbɔːd/ /'swɪtʃbɔːrd/
n. 
总机, 
换台
总机, 换台近义词
n.联想词
;telephone switchboard 
换台，换机
换台，换机switchboard operator 
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相似单词
switchable, switch-and-fuse, switchback, switch-back, switchblade, switchboard, switchboard operator, switchbox, switch-box, switch-desk,