1. Teaching arrangement: If we concentrate on filling a lot of things in one day and have no time to practice and review references, the result will be greatly affected. Therefore, I personally suggest that you spend less time studying and training every day and train more frequently, but the effect will be better.

2. Cost: The price not only refers to the total price, but depends on the length of interactive communication class, class size and the number of lectures. Just like the same price and the same class hours, the total number of students in the class varies too much, and the probability of enjoying the service and oral training varies greatly. Please think twice.