How much is the monthly living expenses in Ottawa? Can China's electrical appliances be taken there? I heard that the voltage is different?

Depends on how you want to live. The most expensive thing is probably the rent. Renting a one-bedroom apartment costs about 800-900 Canadian dollars a month, including water and electricity. If it is shared, the price is cheaper, but it is not very convenient and not suitable for married people with children. There are also meals, internet access, electricity, telephone, parking fees and so on. The voltage here is 1 10V. Household appliances don't work. I need to buy a transformer. The voltage range of notebook is generally 1 10V-220V, so don't worry about not using it, just bring a conversion plug.