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In an ideal world, planes would be made of steel.
一个理想世界里，飞机是由钢做的。
youdao
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Thousands of planes fly around the world each minute of every day.
每天，每分钟，全世界有数千架飞机在飞行。
youdao
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Thousands of planes fly around the world each minute of every day.
每天，每分钟，全世界有数千架飞机在飞行。
youdao