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Last Saturday, the American X-43A airplane made its first flight.
上周六，美国的X四十三飞机成功完成了首次飞行。
youdao
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The J-10 made its first successful flight on 22 March 1998.
J-10首飞于1998年的3月22日。
youdao
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The J-10 made its first successful flight on 22 March 1998.
J-10首飞于1998年的3月22日。
youdao