The independent inventor is a symbol of American ingenuity who can justly claim credit for creations such as the photocopier and the implantable cardiac pacemaker.是什么意思_The independent inventor is a symbol of American ingenuity who can justly claim credit for creations such as the photocopier and the implantable cardiac pacemaker.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句