What are the precautions for traveling to Hong Kong and Macao?

Climate, necessities: the weather is warm, and the annual temperature is generally around 15-30 degrees; Dress: Just wear summer clothes at ordinary times, and prepare a thin coat for air conditioning. Travel clothes are mainly light. When visiting Macao casinos, guests should wear formal clothes, and are not allowed to wear vests, shorts and slippers. Necessary items: guests must bring their valid ID card (children's household registration book) and Hong Kong and Macao pass (valid endorsement from Hong Kong and Macao is required during the validity period), otherwise they will not be able to board the plane or go through customs clearance at their own risk. Hong Kong and Macao hotels pay attention to environmental protection and generally do not provide disposable items. Please bring your own slippers, toothbrush, toothpaste, comb and towel. Please bring your own English standard adapter socket. Take necessary medicines (such as carsickness medicine and antidiarrheal medicine). ) according to your own health.