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1.The wingless autogiro was launched into the sky, leaving a trail of smoke behind it.
这架无翼滑翔机被发射升空，留下一串烟雾。
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2. The wingless autogiro was designed to be lightweight and easy to control.
这架无翼滑翔机设计轻便且易于操控。
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3. The wingless autogiro is a popular choice for beginner pilots who want to experience the thrill of flying without the need for a motor.
对于初学者飞行员来说，无翼滑翔机是一个受欢迎的选择，他们想要体验飞行的乐趣，而无需依赖发动机。