First, if you have a foundation, you can get a certificate in a crash course, because New Oriental also has a research course, so you can apply for it.

Second, if you don't have a foundation, it's obvious that a chef can't do it quickly. If you can't get the exam, you can't get the certificate. You need to study first.

Please forgive me if there are any shortcomings in this solution. I hope it helps you. I hope you can adopt it in time. Thank you! See you next time!