engine: n. something powerful that causes great changes in society
翻译
过去几年投资是中国经济的引擎，现在主要是消费在拉动中国经济。
While investment was the engine of China’s economy, now it is consumption that has been promoting it.
造句
句子：The Meiji Restoration was the engine of Japan’s economic growth in the late eighteenth century.
翻译：明治维新是日本在 18 世纪末经济发展的引擎。
场景：世界近代史。
