@LukeDashjr @jimmysong Airlines originally imposed it on their own but a federal requirement was added later.
@LukeDashjr@jimmysong Airlines最初是自己实施的，但后来又增加了一项联邦要求。
@LukeDashjr @jimmysong Airlines originally imposed it on their own but a federal requirement was added later.
@LukeDashjr@jimmysong Airlines最初是自己实施的，但后来又增加了一项联邦要求。