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机舱将被加压；就像普通航班那样，氧气面罩只供应急之用。
The cabin will be pressurized; as on airline flights, oxygen masks will be for emergencies only.
youdao
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机舱将被加压；就像普通航班那样，氧气面罩只供应急之用。
The cabin will be pressurized; as on airline flights, oxygen masks will be for emergencies only.
youdao