printed circuit card jack 印制电路板插座
jack-card paper 卡片用纸
card jack
卡杰克
以上为机器翻译结果，长、整句建议使用 人工翻译 。
"I would keep Hallmark a million miles away from that kind of card, " says Jack F.
FORBES: Wild Card
Another player in this space is Square, which offers a tiny card reader that attaches to the audio jack on an Android, iPhone, iPad or iPod Touch and reads a card.
FORBES: Shoot the Credit Card with a Mobile Phone to Accept Payment
Square's free Mobile Card Reader plugs into the headphone jack of an iPhone, iPad, or Android device.
ENGADGET: Square launches in Canada, streamlines payments on the world stage
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