In Chinese writing,"purpose"is also a very important factor for you to consider. e.g.If you want to apply for a teaching assistant position,write a short letter to the teacher.You can use our English Writing course as an example.(5-10 min exercise)n In Chinese writing, “purpose” is also a very important factor for you to consider. e.g. If you want to apply for a teaching assistant position, write a short letter to the teacher. You can use our English Writing course as an example. (5-10 min exercise)