engine简单

Chicago’s summer festivals are about more than just entertainment; they are economic engines that directly benefit the neighborhoods they’re in and the city of Chicago as whole.

芝加哥的夏季节庆不仅仅是娱乐；它们是经济引擎，直接惠及所在社区乃至整个芝加哥市。

Manufacturing is not the economic engine that it once was.

制造业已不再是昔日的经济引擎。

Novelty as an Engine of Scientific Development.

新颖性：科学发展的引擎。

We define such sold media as owned media whose traffic is so strong that other organizations place their content or e-commerce engines within that environment.

我们把这种售出媒体定义为：流量大到其他机构会把自己的内容或电子商务引擎放置其中的自有媒体。