代码中定义了一个 primitives 对象，里面藏着 20 多种不同的几何体生成函数。让我们挑几个常用模型进行分析：
最後一個案例也是篇幅最多的，是有關中國的「網路特別行動」（China’s "Cyber Special Operations"）。
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There is a special form for boolean formulas called "Conjunctive Normal Form" (CNF). A problem in this form consists of clauses connected with and operators, where each clause only contains variables connected with or operators. The variables can appear negated, but only variables can be directly negated, something like !(a && b) is not allowed. An example boolean formula in CNF form is:
St David's Day
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Netflix's plan drew warnings that it would give the dominant streaming player even more power over actors and screenwriters, while putting further pressure on local cinemas.，更多细节参见heLLoword翻译官方下载
Apple CEO Tim Cook has teased “a big week ahead" for Apple, starting on the morning of Monday, March 2. The company had already announced an in-person event for media and creators on March 4, while rumors had pointed toward Apple revealing at least five products over three days next week, so it looks like the stars are aligning for that to actually be the case.