He said he had made his first cautious flight only two feet up at first.
他说他终于谨慎的进行了第一次试飞。在这次试飞中，他的飞行器只飞离地面两英尺。
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The pilot made his first solo flight in the airplane.
那个飞行员第一次在飞机中作了单飞。
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