假定每个火力单位均能有目标射击，敌实施连续空袭，由此建立计算最大可射击时间的数学模型。

Assuming every firepower unit has aims to fire, enemy actualizing continuum air attack, therefore a math model for calculating Max time to fire is set up based on the these factors.

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目击者说这次射击是蓄意的，而且还持续了一段时间。

Witnesses say the firing was deliberate and sustained.

《柯林斯英汉双解大词典》

在玩家们占用了阅读和谈话的时间来射击虚拟的警察时，他们所没有获得的技能又是什么呢？

What, after all, of the skills they are not acquiring when shooting virtual cops instead of reading or talking?

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