英语词汇“electronic central office”的读音、翻译、释义、用法及例句-语文网

词汇	electronic central office
释义	electronic central office 电子电话中心局（=ECO）利用电子设备完成电话转接的地方。
随便看	by accident by acclamation by air by-and-by by birth by-blow by bus by carriage by chance by choice by comparison by contrast by courtesy of by day by definition by degrees by dint of bye bye- bye-bye bye-byes byelaw by-election Byelorussia Byelorussian

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