本期内容：

Apple has become the world's first public company to be worth $1 trillion. Since the iPhone first went on sale in 2007, Apple shares have soared by 1,100% and have jumped almost a third in the past year. Apple traces its origins to the garage of co-founder Steve Jobs in 1976 and was initially best known for its Mac personal computers before its smartphone paved the way for the app economy.

public company: 上市公司
go public: 上市
IPO / initial public offering: 首次公开募股；首次上市
be listed: 上市
trillion: n. 万亿
million: n. 百万
billion: n. 十亿
jaw-dropping: adj. 令人震惊的；令人惊愕的
soar: vi. 迅速增长；翱翔 (skyrocket)
jump: vi. 暴涨；激增
trace: vt. 追溯
origin: n. 起源
original: adj. 原创的；原来的
garage: n. 车库
HP / Hewlett-Packard: 惠普
co-founder: n. 联合创始人
initially: adv. 最初地
pave the way: 铺设道路；打下基础
app: 应用程序 (application)
sharing economy: 共享经济

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