How is the English orientation of SF Airlines ground theory instructors?

SF Airlines’ ground theory instructors are very good in English. SF Airlines is the first private express airline in China, and it is also the cargo airline with the largest fleet in China. The popularity of ground theory instructors in English is 2.39 nationwide year-on-year. The market is vast, the prospects are good, the environment is good, and the salary is high. It is very popular. Not bad.