You have been quarantined in Hong Kong for 7 days after flying from Toronto to Hong Kong. If you transfer from Hong Kong to Guangzhou, you may also need to quarantine in Guangzhou under normal circumstances. However, the specific quarantine policy may differ based on the epidemic situation at the time and the agreement between the two countries. It is recommended that you consult the relevant airline or local health department before departure to obtain the latest entry and quarantine policy information.