1. Huaxing School in Hexi District, Tianjin is a nine-year private school jointly established with Huaning Middle School. It's a smart new school, so there are many applicants. Haihe Aibo School is only an ordinary private school with a nine-year system, so few people sign up.

2. Teachers. The teachers in Huaxing School are all teachers with more than ten years' teaching experience, while the teachers in Haihe Pok Oi School are not as good as those in Huaxing School, so there are more people in Huaxing than in Pok Oi Fort.