然而，由于飞船中央计算机系统出现问题，这次飞行任务取消了。
However, the flight has been canceled because of problems with the spaceship's central computer system.
经理通过人工任务取消订单的情形比较简单。
The case where the manager cancels the order via the human task is straightforward.
我们别无选择，只有取消这项任务。
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