Provide automatic key AA/BB, 8 directions key , and TRIGGER KEY that can let shoot key down without press shoot key all the time.

自界说控制，提供自动放射的AA/BB，八标的目的，触发键可能让你不消连续按着放射键。

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Remember that you need to press a letter key or keys to trigger the rocket motion; depending on your computer's speed, you might experience a slight delay before the rockets appear.

记住，您需要按一个或多个字母键来触发火箭运动；根据您的计算机的速度，您可能在火箭出现之前会感觉到一点延迟。

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And what is unnerving today is that the key element, the trigger for the sudden change, appears to have been carbon dioxide.

今天，令人不安的是，其关键元素——突然变化的触发器，似乎是二氧化碳。

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One key trigger of this change is rapid wage growth stemming from the emerging labor shortage.

FORBES: China, On The Road To High Income Country Status

The confiscation of US property by Cuba's revolutionary government was a key trigger for the embargo.

BBC: Cuban embargo at 50: US cars with Soviet parts

Any breaks of key support and resistance could trigger further moves, particularly if the market were to trigger sell or buy stops.

FORBES: Gold Traders Eye U.S. Dollar, Technicals As Consolidation Continues