黑箱操作 hēixiāngcāozuò under-the-table manipulation Origin Definitions Defs Strokes Stroke Words Sentences Sents 黑箱 hēixiāng noun black box a system or process viewed in terms of its inputs and outputs without knowledge of its internal workings, as in computing or science操作 cāozuò to rig To manipulate or control a situation behind the scenes, often for one's own advantage