形容词
中文翻译：空中的
同义词：
['aerial', 'aloft', 'skybound']
例句：
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1. The aircraft was airborne at 10,000 feet.
飞机在10000英尺高空飞行。
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2. Airborne surveillance is a common practice in many countries.
空中监视是许多国家常见的做法。
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3. The pilot had to make an emergency landing due to the airborne threat.
由于空中威胁，飞行员不得不紧急降落。