【解释及出处】
他们不仅开发了这样一种设备，而且在世纪之交，他们还成功地将其嵌入到每天有数十亿人访问的全球系统中。
Not only did they develop such a device but by the turn of the millennium they had also managed to embed it in a worldwide system accessed by billions of people every day.
他一生中从未如此努力地工作过。
只有面对和克服生活中的困难，我们才能快乐健康地成长。
Only by facing and overcoming difficulties in our life can we grow up happily and healthily.
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