Clattering keyboards may seem the white noise of the modern age , but they betray more information than unwary typists realise .

敲击键盘的声音可以视为现代社会的一种白色噪音，但其实，它们还比想象中的透露了更多的信息。

Once he 'd said the second post had come , brown envelopes mostly , clattering through the letter box .

他曾说，第二趟邮递到了，多数是棕色信封，在邮筒里啪啪响。

The sound of jackboots clattering on the pavement would fill the air .

军靴在人行道行走时发出的咔嗒声充斥在空气中。

A fascinating experiment was done in a bowling alley that showed that when people get a strike they do not smile as they watch the pins come clattering down .

有人在保龄球道做了一个有趣的实验，实验表明，当人们打出好球，看着木瓶哗啦啦倒下的时候并不会笑。

One evening , when she heard the keyboard clattering from her son 's room in the middle of the night , she became furious . She didn 't want this digital game to steal away her son .

一天晚上，她又听到儿子的房间中传来键盘的咔嗒声，她实在不想让游戏把儿子抢走。