calling card
参考词典中calling card的常规释义：
基本释义
- n.<美>名片
英英解释
3个名词解释
- a card that is used instead of cash to make telephone calls
[同] calling card, phone card - a printed or written greeting that is left to indicate that you have visited
[同] calling card, card, visiting card
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- a distinguishing characteristic or behavior
[例]- bombs are a terrorist's calling cards
less ...点击查看……- a card that is used instead of cash to make telephone calls
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