名词
中文翻译：空运
同义词：
['air freight', 'air transport']
例句：
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1. The package was sent by air mail to ensure it arrived on time.
这个包裹通过航空邮件发送，以确保按时到达。
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2. The airlines are responsible for the safe delivery of passengers and cargo.
航空公司负责乘客和货物的安全运送。
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3. The plane took off at 8:00 AM and landed in Beijing at 5:00 PM.
飞机在早上8点起飞，下午5点降落在北京。