最重要的是，必须事先修订运营计划以满足当前的市场需求以及了解各种措施所产生后果，这样就可以最大限度地减少成本和破坏性的意外事件。

Most important, an updated operation plan being set to satisfy the current market, and the consequences of taking various actions are known ahead of time, minimizing cost and disruptive surprises.

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走路的时候，发现意外事件有十分之一秒的时间延误几乎没有造成后果，但是在开车的时候，可能会使你丧命，或者其他人会丧命。

A delay of a tenth of a second in noticing an unexpected event is of little consequence when walking, but when driving could kill you, or someone else.

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