2-years work experience requirement is there forever ... I mean, it isn't novelty since 2017.

That requirement is there to prevent too young people applying for work in China.

Just add some 2-years experience to your CV ... , let say, if you are over 22 or so-years old, and apply for job in China. 

Chinese employers won't go over all troubles to check-out (call) your 2-years work experience employer, but they might turn you down, if you are too young. 

Good luck!

Just say you worked for a school in Brazil. Have it types of company letterhead. Have phone numbers and email like it is a real school. Do you really think anyone is going to call a school across the world to ask if a english teacher that they are going to exploit and abuse anyway actually worked there. Most documents are required to meet  formalities  and have little value. I was asked for a background check from the USA and I have not lived in the usa for over 5 years. I could have been a cereal killer in Brazil,  an arms trafficker in Peru and a revolutionary in Colombia during that time.