卡片索引;
I need a new card index for my office, because this is broken.
我办公室要换一个新的卡片索引柜,这个坏了.
They had to bring the card index up to date.
他们使得索引卡片跟上发展,不致过时.
Third, keep your card index handy and up to date.
第三, 把索引卡片放在手边,而且查最新的.
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