cancelability type 函数功能设置调用该函数的线程的取消类型
cancelability state 函数功能设置调用该函数的线程的取消状态
Deferred cancelability 延迟的取消
Hedges get the features of indirectness, cancelability, markedness and indefiniteness.
模糊措辞具有间接性，可取消性，明显性和不确定性的特征。
News English requires the expressions to be objective, timely and accurate, while hedges get the features of indirectness, cancelability, markedness and indefiniteness.
模糊限制语具有间接性、可取消性、标志性以及不确定性等特点，而美国新闻英语中模糊限制语的运用有其特殊的语用地位和特点。
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