名词
中文翻译：无人陪伴的飞行
同义词：
['unaccompanied flight', 'unaccompanied journey']
例句：
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1. The pilot had to make an unescorted flight to reach the destination.
飞行员不得不进行一次无人陪伴的飞行才能到达目的地。
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2. The unaccompanied flight was a terrifying experiencefor the passengers.
这次无人陪伴的飞行对乘客来说是一次可怕的经历。
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3. The unaccompanied flight took them hoursto complete.
这次无人陪伴的飞行让他们花了几个小时才完成。