当你想到对人类生活产生巨大影响的发明时，什么会闪现在你的脑中呢？也许是车轮，印刷术，或许是冰箱，还有可能是个人电脑。
When you think about inventions that have radically changed human existence, what comes to mind? Probably the wheel, the printing press, maybe the refrigerator and definitely personal computers.
当你想到对人类生活产生巨大影响的发明时，什么会闪现在你的脑中呢？也许是车轮，印刷术，或许是冰箱，还有可能是个人电脑。
When you think about inventions that have radically changed human existence, what comes to mind? Probably the wheel, the printing press, maybe the refrigerator and definitely personal computers.
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