[] 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甚麽？◆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