flash card
US /ˈflæʃ ˌkɑːrd/
UK /ˈflæʃ ˌkɑːrd/

1.
抽认卡, 闪卡
a card bearing words, numbers, or pictures, used in teaching or for memorizing
:
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I used flash cards to study for my vocabulary test.
我用抽认卡来准备词汇测试。
•
The teacher showed the children animal pictures on flash cards.
老师用抽认卡给孩子们看动物图片。