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世界上最大的飞机首次起飞。
The world's largest aircraft has taken to the skies for the first time.
youdao
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无翼飞机首次试飞预计将于4个月内实施。
WEAV is expected to have its first trial flight in 4 months.
youdao
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重新设计导致了飞机首飞日期推迟15个月。
That redesign helped put back the plane's first flight by 15 months.
youdao