Students must be logged into Google before they can join one of their classes or teacher Google Meets.
If you are not already logged in, you must login to Google using your School Email (s5*****@dbis.edu.hk) using the password provided to your parents when you joined. (If the sign-in page is in Chinese and you cannot read it, click HERE for instructions on how to change it to English.)
If you seem to be logged onto Google already, be careful that you are not logged on as someone else. You will not be able to join the Meet.
You may have been given a whole link e.g.
https://meet.google.com/xxx-yyyy-zzz
In this case, paste the link into the browser and you can join the meeting.
If you only have a short code xxx-yyyy-zzz you can go to https://meet.google.com click the Green Join button (see below) and enter the code there.