Read high quality news magazines (e. g. the covert), cover t o cover.
读高质量的杂志(如《经济学家》等)，从封面到封底，每一页都要细读。
These competitors may often probe potential candidates for valuable information so using cover up companies can help keep things covert.
据游戏邦了解，这些竞争者经常从这些潜在的雇员身上打探宝贵的信息，然后借助保密公司的帮助就可以确保事情不败露。
In order to eliminate the covert channels, the polyinstantiation and the cover story are used in the new data model. The read and write rules have been redefined for improving...
通过引入多实例和伪元组，并重新定义读写规则，使改进后的模型更具安全性、灵活性和可用性。
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