[解析]
Dear Daniel,
Knowing that you are interested in Chinese Calligraphy,I am writing to advise you to join the calligraphy and painting club of our school for systematic study.(写邮件的目的)
This club was founded last year by the Students' Union,whose purpose is to provide students with the opportunities to practise Chinese calligraphy. 【高分句型一】Students can also share their works of calligraphy in the club.There are professional teachers in the club who can provide professional assistance to help students improve their calligraphy skills. 【高分句型二】(简要介绍学校的书画俱乐部)
I would be very happy if my advice can be of great help for you.Best wishes.(表达祝愿)
Yours,
Li Hua