此卡一经开封概不退换 翻译成英文，请人工翻译

No refunds or exchanges if the card is unsealed.

The card will not be exchanged after activation.

开启这个词还要看你说的是什么卡，如果是电子卡类的功能开启，就要用activation激活，如果只是什么单纯的“打开”，就用open或者unseal。

Once unsealed，this card isn't either exchangeable or refundable

You can't return the card back if you open it.
我的比较容易懂啦

No refund or exchange will be accepted once this card has been unsealed

Once this card is open,it will not be returned