根据中文和英文提示，写一封意思连贯，符合逻辑，不少于50词的回信。信的开头和结尾已给出，其词数不计入所要完成的回信内，所给英文提示词语仅供选用，请不要写出你的校名和姓名。
假如你叫李华，最近和美国朋友Anna通过邮件谈论各自的初中生活，她对你的团队合作（teamwork）经历很感兴趣。请你根据她的问题回复邮件。
提示词语：difficult，encourage，work with，realize，important
Anna
What teamwork did you take part in? Playing sports? Having a party? Volunteering? Or...?
What did you do with others in the team?
How do you feel about teamwork?
Hi! Anna,
I'm glad to hear from you. I have benefited a lot from teamwork and I'd like to share my own experience.
Yours,
Li Hua