The duck was excellent in swimming, in fact better than his instructor, but he made only passing grades in flying and was very poor in running.

鸭子是极棒的游泳能手，事实上，比他的教师更专业，但是，他在飞行上经过艰苦的训练，仅仅能通过级别考试，而在赛跑方面更是惭愧至极。

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The duck was excellent in swimming, in fact better than his instructor, but he made only passing grades in flying and was very poor in running.

鸭子是极棒的游泳能手，事实上，比他的教师更专业，但是，他在飞行上经过艰苦的训练，仅仅能通过级别考试，而在赛跑方面更是惭愧至极。

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