N an expression in which the replacement of a term by another with the same reference may change the truth-value of the whole. John believes that Cicero was a Roman is opaque, since even though Cicero and Tully are the same person John may know that the given statement is true but not that Tully was a Roman 晦涩上下文 [philosophy] → compare transparent context
Context is an opaque object reserved for future use.
context是一个保留为未来使用的不透明对象。
The first parameter is the Notification object which was emitted, and the second is the handback, an opaque object which can be used if some sort of context is needed.
第一个参数是被发出的Notification对象，第二个则是handback，一个不透明的对象，如果需要某种上下文的话，它就会被用到。
As in entering a walled enclosure, the building looks permeable from the interior and opaque from its urban context.
当进入由墙围合起的这片区域时，建筑的室内与室外互相渗透，但对于外部的城市环境却是不透明的。
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