每日一词(补49)/engine

1. 释义：something powerful that causes great changes in society

2. 理解：名词engine常见意思为“引擎”“发动机”，它的引申用法可以用来表示“可以引发巨大改变的事物”“带动发展的事物”，比如微信就是腾讯的engine。

the engine of growth/an engine of efficiency

3. 应用：

1）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 a few years ago, today it is mainly driven by consumption.

2) 造句：

The eager to use a language is always the engine of learning it.