index 的意思

释义：

n. 索引；指数；指标

构词：

in进入+dex=dict说话,断言,写→说进去→索引,使其明白→指标,指针

例句：

His index finger tightened on the trigger but then relaxed again.
他的食指扣住扳机,然后又松开了. 换一句

A supplementary volume has been published containing the index.
附有索引的增补卷已经出版. 换一句

Accumulator and index register can be accessed by the programmer.
程序员可以对累加器和变址寄存器进行存取. 换一句