cctv:管道闭路电视系统(Closed Circuit Television Inspection)或者中国中央电视台
(China Central Television)
wc:盥洗室 water closet
CEO:首席执行官(Chief Executive Officer)
IQ:智力商数(Intelligence Quotient)简称智商
GPS:全球定位系统(Global Positioning System)
UN:联合国(United Nations)
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