to whom it may concern,
i have taught with professor xxx for over 10 years at peking university. he is a successful teacher of the department of chinese language and literature.
professor xxx is very knowledgeable and capable of teaching a wide range of subjects: chinese composition, history of the chinese language, modern chinese grammar, chinese literature, chinese for foreign students, and language teaching methodology, etc.
i consider professor xxx a very dedicated professional. his classes are always well planned and executed throughout the semester. he is highly respected by his students and colleagues.
with near-native fluency of english and rich experience in teaching overseas students, professor zhu would be highly eligible to fill any chinese language teaching position in an english speaking country.
sincerely,
xxx(signature)
professor of chinese language