英语语法分析

It is about the size of a grain of rice and is called the stirrup.

它的大小大约是一粒米，被称为马镫。

Charlemagne had the stirrup. We have the computer.

查理曼拥有马镫，我们拥有电脑。

The first-order effects of the stirrup were dramatic.

马镫的一阶效应已是非常巨大。