This is the 5612th most frequent Chinese word.
刷卡
Swipe a card.
Here, 刷卡 ('swiped my card') refers to using a card for payment during a purchase.
我在超市刷卡购买了一些食品。
I swiped my card to buy some groceries at the supermarket.
In this sentence, 刷卡 ('swipe your card') is used to describe how one accesses an area using a card.
你可以刷卡进入图书馆。
You can swipe your card to enter the library.
刷卡 ('swipe your card') in this context is again related to completing a transaction, indicating using a card reading device.