Beijing is her sister's responsibility. I suggest you go to Guangzhou. They will pick you up as soon as you get off the plane.
As for safety, don't worry. Promise? I don't know what you are talking about. Of course there is security.
It is a closed intensive training camp. If you mean the learning effect, how do you say it?
First of all, you won't learn much in 12 days (12 days), but! ! This spirit
After learning English and practicing in this spirit, you should be able to learn a lot.
Keep practicing, or it's useless! !