请你根据以下提示，以“我的朋友”为题，用英语写一篇介绍Rona的短文。80词左右。

my bset friend is a girl called rona.she has long hair, a round face and a small mouth.she has several good hobbies, such as reading and swimming. as i know, she always goes to swim twice a week. by the way, i am proud of our academic lessons. i am good at maths, and she is good at english ,so we can help each other on study and learn something useful from each other.

首字母没用大写，你凑合看吧。不过标点我有很好写出来==||

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描写下样子，神情，喜欢的颜色，爱好，喜欢干什么等等，或者弄一件事情表达这个人的品得。