这个女孩代表我们班参加演讲比赛。
The girl stands for the whole class to participate the speech contest.
我当英语课代表的目的是帮助大家学习，提高我们班的英语成绩。
My purpose of being the English Rep is to help you with your studies, to improve the English score of our class.
我当英语课代表的目的是帮助大家学习，提高我们班的英语成绩。
My purpose of being the English Rep is to help you with your studies, to improve the English score of our class.
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