[解析]
Dear Harry,
I'm sorry to learn that you have some difficulty adapting to your life in China. And I quite understand how you feel now.(表示安慰)
To get used to the life here, you are advised to learn about Chinese cultures. I think it a good idea to seize all the chances available to talk with the Chinese around you, from whom you will, without fail, be informed of our usual practices.【高分句型一】 Additionally, when free, you should travel around to experience local customs and cultures.【高分句型二】(给出建议)
I hope the suggestions will be of help and that you will have a pleasant stay here. Best wishes!( 寄予希望)
Yours,
Li Hua