1.in the differences between ...之间的差异
Brazil offers a case study in the differences between a middle class created by the state and one that owes more to the private sector.
关于国家催生的中产阶级和更多地归功于私营领域的中产阶级的种种差异,巴西提供了一个鲜活的研究案例。
2.let alone 更不必说
She can't ride a bicycle, let alone drive a car.
她连自行车都不会骑,更别说开小汽车了。
3.live on the land 居住在陆地上
We must think about the people who live on the land.
我们必须考虑一下住在这片土地上的人。