Normal index

normal ['nɔrml]

adj. 正常的;正规的，标准的;[数学]正交的;精神健全的; n. 正常，常态;标准;[数学]法线;

norm规则，规范+al形容词后缀→有规范的→正常的

index ['ɪndɛks]

n. 索引;<数>指数;指示;标志; vt. 给…编索引;把…编入索引;[经济学]按生活指数调整（工资、价格等）; vi. [机械学]转位;

in(in)+dex(proclaim)→指针；索引；指数；食指；指标

You have some guests in the reception room.

有几位客人在接待室等 。

How's your sister?

你的嫂嫂好吗？

Lawn mowers whining on a summer's day, late-night parties in apartment blocks, noisy neighbors, vehicles of al kinds, especially large container trucks thundering through quiet village, planes and helicopters flying overhead, large radios carried round in

夏天呜呜作响的割草机，公寓楼里深夜聚会的喧哗声，大声吵闹的邻居，各式各样的车辆，特别是穿越寂静的村庄的集装箱卡车，从头顶飞过的飞机和直升机，被带到公共场所、音量开到最大的大功率收音机。