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我有一个妹妹，她唱歌很好听，人们就会安静下来，能做她的姐姐，美妙的声音， i have a sister. she is younger than me. my sister has a special talent. she sings very well. every time when she starts to sing， but i have to admit that her voice is so nice. i am so proud of being her sister，因为我
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