Dear Sir or Madam,
This is ----(你的名字). The purpose for me to write this letter is to recommend ---(推薦的對象) to you. I am surely that the person is full with your requirement and you will be interested to let him/her to join your group. Here are some background about the person as followed.
The person has high qualifications for this position, since he master （相關的技能）skills perfectly and he could speak English fluently. Beside these basic skills, and he has great personality, which includes honest, reliable, and responsible. In his work, he/she not only demonstrate imitative and creativity, but also flexibility and adaptability. Therefore, I believe that he would make worthwhile contribute to your group.
Iam looking forward to hear your favorable reply,and please let me know if you have questions about it.