找到了,看来是可以的
eGifts and Cards can be issued only in U.S. dollars (“USD”). If an eGift
or a Card is used for the purchase of a ticket issued in a currency other
than USD, the full value of the eGift or Card will be converted to that
currency using the Bankers Rate of Exchange in effect on the date of ticket
issuance, and the rate of exchange will be indicated on the ticket.