本期内容：

Larry Tesler, an icon of early computing, has died at the age of 74.
Mr Tesler started working in Silicon Valley in the early 1960s, at a time when computers were inaccessible to the vast majority of people.
It was thanks to his innovations - which included the "cut", "copy" and "paste" commands - that the personal computer became simple to learn and use.

icon n. 标志性人物
inaccessible adj. 不可达到的
• (sth.) be inaccessible to sb. （某事）对于某人来说是很难的
• The language of teenagers is often completely inaccessible to adults.
青少年的语言，成年人往往听不懂。
the vast majority of…: 绝大部分……
• The vast majority of its revenue comes from taxes.
它的绝大部分收入来自税收。
innovation n. 创新
• cultural/educational/industrial/scientific innovation: 文化/教育/工业/科学创新
command n. 命令，指令




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