I have a sister. Her name is Li Xin. She is fifteen years old now. Like many other middle school students， she has black long hair and always ties them up. But she has a specialty that she can play piano very well. She began to learn the piano at the age of five. She likes piano very much， so she can practice it all the day. She once said that she is happy when playing piano. Until now， she has performed in many places. She is a piano player of some renown. I am proud of her.

　　我有一個(gè)姐姐，名字叫李欣。她今天十五歲了。和其他許多中學(xué)生一樣，她有一頭烏黑的長(zhǎng)發(fā)，經(jīng)常扎成馬尾。但是，她有一項(xiàng)特長(zhǎng)，那就是她彈得一手好鋼琴。姐姐從五歲開始學(xué)習(xí)鋼琴，她很喜歡鋼琴，可以練習(xí)一整天。她曾說過，彈鋼琴的時(shí)候她感覺很快樂。到目前為止，她已經(jīng)在很多地方表演過了，是一位小有名氣的鋼琴演奏者。我為我的姐姐感到自豪。