They were magnificent birds, all of them, and they spent hour after hour every day practicing flight, testing advanced aeronautics.
他们全是了不起的鸟儿，每天无时无刻不在练习飞行，试验各种高级特技。
They were magnificent birds, all of them, and they spent hour after hour every day practicing flight, testing advanced aeronautics.
他们全是了不起的鸟儿，每天无时无刻不在练习飞行，试验各种高级特技。
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