calling card

基本解释

'It was a real calling card, ' he adds.
他又補充說，這是一張真正的名片。
These resources are your calling card, these resources are your recruiting tool.
這些資源是你的呼叫卡，同時也是你吸收同道中人的吸鉄石。
And when it was done, when her agonal struggles had ceased, you left us a calling card.
儅一切都結束時，儅她痛苦的掙紥停止時，你給我們畱下了一張名片。

Unfortunately for Tiger, class has not been his predominant calling card over the last 2 years.
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New Orleans has cashed in on their historical calling card as a festive host city.
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This stretched-out calling card rolls laboriously to the finish line—yet Dupieux saves his sharpest inspiration for a trick ending.
NEWYORKER: Rubber

(PHONE) a card that allows the user to make calls from anywhere and charge it to his or her home phone account
(VISIT) (in the past) a card with their name on it that a person left after they had made a formal visit to someone else's house, etc.

A calling card is a small card with personal information about you on it, such as your name and address, which you can give to people when you go to visit them.
If you say that someone has left a calling card, you mean that they have left evidence that shows they have been in a particular place, especially at the scene of a crime.