In the absence of synchronization, if one thread writes to a variable and another thread reads that same variable, the reading thread could see stale, or out-of-date, data.
没有同步时，如果一个线程读取另外一个线程正在写的变量，读的线程将看到过时的数据。
Despite an absence of anything else worth reading in the aforesaid library in the aforesaid Fatboys, do not read the Boris book five times. Nothing is that insightful or that funny.
尽管胖男孩咖啡馆的藏书里没有其他值得看的东西，不要将Boris的书看五遍，因为这本书还没有有趣到这个地步。
The post image-reading era generates a "simulacrum cultural world", which can be perceived as a philosophical meaning of "the existence of absence".
后读图时代营造出仿像文化世界，反映到哲学上就是“缺席的在场”；
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