名词
中文翻译：直升机
同义词：
['heli-', 'helicopter', 'aeroplane', 'airship例句：1. He flew a helicopter to the rescue site.（他驾驶一架直升机前往救援地点。）2. The helicopter was used to transport patients to the hospital.（这架直升机被用来运送病人到医院。）']
例句：
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1. He flew a helicopter to the rescue site.
他驾驶一架直升机前往救援地点。
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2. The helicopter was used to transport patients to the hospital.
这架直升机被用来运送病人到医院。
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3. The helicopter circled overhead before landing safely.
直升机在安全着陆前在空中盘旋。