Closely monitor pre-flight check and load factorfor analysis and forecast.
密切关注航前检查，运载因素，以便分析及预测。
Pre lets me know there is an accident up ahead and that I might miss my check-in time for the flight.
Pre告诉我知道前面有车祸发生，我可能会错过航班。
Pre lets me know there is an accident up ahead and that I might miss my check-in time for the flight.
Pre告诉我知道前面有车祸发生，我可能会错过航班。
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