[] a thing or an idea that has been invented发明物；创意◆What was Henry Ford's greatest invention?亨利 • 福特最伟大的发明是什么？◆The best inventions are the simplest and most obvious.最简单和最容易理解的发明才是最好的发明。 [] the act of inventing a product, method, etc.发明；创造◆the 100th anniversary of the invention of air conditioning空调发明 100 周年纪念日