新西兰某中学现招募志愿者，为其参加“汉语桥”（Chinese Bridge）中文演讲比赛的选手进行线上辅导。假如你是李华，请根据下面要点和要求，用英语写一封不少于40词的自荐信。

要点：

（1）表达意愿；

（2）说明优势。

要求：要点齐全；表述通顺；简洁得体。

Dear Sir or Madam,

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Yours,

Li Hua