齐飞飞
Qi Feifei
以上为机器翻译结果，长、整句建议使用 人工翻译 。
沙沙和飞飞是一窝出生的两只燕子，他们刚刚长齐羽毛，妈妈时常提醒他们，要每天练习飞翔的技术和耐力。
Sasa and Feifei are two twin swallows. After they grew out feathers, their mother kept urging them to practise flying skills and train their stamina every day. Sasa was very assiduous.
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