T2到T3車程約半小時耶,參考Emirates官網: Transferring to or from Emirates Terminal 3 If you are transferring from an Emirates flight to a flydubai flight departing from Terminal 2, you have to use a dedicated bus service to the F Gates in Terminal 2. This bus ride can take up to 40 minutes.
Transferring to or from Emirates Terminal 3
If you are transferring from an Emirates flight to a flydubai flight departing from Terminal 2, you have to use a dedicated bus service to the F Gates in Terminal 2. This bus ride can take up to 40 minutes.
https://www.emirates.com/english/before-you-fly/dubai-international-airport/emirates-terminal-3/finding-your-way.aspx