题目内容：

成语是中国文化的重要组成部分，它能用简单的词语表达出丰富且深刻的寓意。假定你是李华，你的外国笔友 Peter对中国成语很感兴趣，向你咨询有关中国成语的信息。请你写封邮件，介绍成语相关内容：

1、成语的特点；

2、学习成语的益处；

3、自己学习成语的感受和体会。

Dear Peter,

I am glad that you are interested in Chinese idioms.

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Yours sincerely

Lihua