blue card

基本解释

Step 2: The teacher distributes the blue and white cards, giving one card to each student in random order.
第二步：将准备好的蓝卡和白卡随机发给学生。
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Even most owners of American Express Blue cards haven't figured out how to install the ones they were sent for free.
即使大部分美国运通蓝卡的所有者也弄不清如何安装这些免费发送的读卡机。
The European Union is contemplating introducing a system of "blue cards" that will give talented people a fast track to EU citizenship.
欧盟正计划推出一套“蓝卡”系统，为才华者快速获得欧盟公民的身份打通渠道。

The Caltech researchers did an experiment with two decks of red and blue cards.
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Most people decide to make their guesses about the deck where they know there's an even mix of red and blue cards.
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M. 1400 Series computer, which then spit out your matches: five blue cards, if you were a woman, or five pink ones, if you were a man.
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