There are four main parts of hip-hop: MCing is singing words or what is called rapping.

VOA: special.2009.10.14

So the Diadokhoi, the Greek plural of Diadochi, as we often refer to it, ended up splitting his army into four parts and four dynasties descending from the four successors.

所以这四个Diadokhoi，也就是Diadochi的复数形式，我们通常用这个词，最终将他的军队分割为四个部分,由此产生了四个王朝。

耶鲁公开课 - 新约课程节选

Many parts of the plan will fully take effect in four years.

VOA: special.2010.03.24