I'm also preparing for an interview. Personally, if you don't know anything about this interview before, or have no foundation, I suggest you don't choose such a short training course, because it is equivalent to the final sprint training, and the gains will not be great. I suggest you buy a suitable guidebook and read it yourself first. In addition, YY Voice also has many public welfare classes for interviews. You can listen to them for free, and the teachers will give lectures and the candidates will answer questions. You will gain something. After studying for a period of time, if you feel it is necessary, you can also apply for YY to study in a small class. The tuition fee is much cheaper than the physical teaching. I hope it will help you, and I wish you success! Come on, the key is to accumulate more and practice more!