But the most successful type of flowering plant is one that makes up 20% of all plant life on the planet.最成功的开花植物是占全世界植物百分之二十的

make up拼凑成

The group was made up of doctors.

这个团体是由医生组成的。

A large part of Africa is made up of thick forest.

非洲的大部分地区都是密林。

And a few grasses, particularly rich in nutrients,而且有几种营养特别丰富的禾本科植物

a few一些(用于可数名词之前)

She read me a few extracts from her own new novel.

她把她自己的新小说念了几段给我听。

10,000 years ago, we humans started to cultivate rice in order to harvest its food-rich seeds.人类在一万年前开始种植稻子 以收成其营养丰富的种子

in order to为了

We started early in order to arrive before dark.

为了在天黑前到达，我们很早就动身了。

But there is one other grass that has spread even further across the planet due to its relationship with humans...但还有一种植物因为与人类的关系在地球上的分布范围更广

due to因为，由于

Some students quit school due to poverty.

一些学生因贫困而辍学。