Playing cards or index cards- for collecting mercury beads

扑克牌或索引卡-用来收集水银珠子

It is possible to print Index cards.

是有可能的打印索引卡。

Use simple tools such as index cards and whiteboards.

用简单工具，譬如索引卡和白板。

The usual good brand is index cards three to seven cards.

通常的好牌是指数牌的三至七的牌。

The most common way to create flashcards is to use index cards.

制作抽认卡最常用的方法是使用索引卡。

Whiteboard and Post-It Notes / index cards were the overwhelming responses.

白板和Post-it笔记/索引卡片是大家最为推崇的两种工具。

But entering words and examples of their use on close to two million index cards was tedious work for the professors and graduate students who were also busy with classes and other research.

但是进入单词和例子，他们使用了200万张卡片，这些对于那些忙于学业和研究的专家和大学生来说是非常枯燥的工作。