main-stream economics的用法和樣例：
例句
- Mainstream economics assumes that the economy, the engine of modern civilization, can grow perpetually.
主流經濟學認為，經濟作為現代文明引擎，能夠永遠增長下去。 - As we see later, the mainstream economics, i.e. neoclassical theory, does not lack a definition of rent-seeking but it lacks a theory of rent-seeking.
正如我們接下來將看到的，主流經濟學，即新古典經濟學，並不缺乏尋租的定義，但缺乏尋租的理論。
