card index
英 [ˈkɑːd ɪndeks]
美 [ˈkɑːrd ɪndeks]
n. 卡片目录(或索引)
牛津词典
noun
- 卡片目录（或索引）
a box of cards with information on them, arranged in alphabetical order
柯林斯词典
- 卡片目录;卡片索引
Acard indexis a number of cards with information written on them which are arranged in a particular order, usually alphabetical, so that you can find the information you want easily.
英英释义
noun
- an alphabetical listing of items (e.g., books in a library) with a separate card for each item