Yes, you can use multiple credit cards at the same time. Maybe two credit cards share the credit limit.

Credit Card (English: credit card), also known as credit card. It is a non-cash transaction payment method and a simple credit service.

Credit card limit, also known as credit card available limit, refers to the maximum amount of credit card you can use, including credit limit (that is, the maximum overdraft limit of credit card) and the amount deposited in credit card.