A riding accident left him immobile.是什么意思？

A riding accident left him immobile.

一场骑马意外事故导致他瘫痪。

riding

n. 骑马，乘车，自找麻烦，自讨苦吃，区；v. 骑，驾驶( ride的现在分词)，乘坐；

例句
...a group of youths riding their motorbikes four abreast.
驾着摩托车，四个一排齐头并进的一群年轻人

accident

n. 意外事件，事故，机遇，偶然，附属品；

例句
She was involved in a serious car accident last week...
上星期她卷入了一场严重的车祸。

left

adj. 左边的，左侧的，左派的；n. 左，左面，[军]左翼，左派，激进分子；adv. 向左，在左边；v. 离开( leave的过去式和过去分词)；

例句
All that digging had left a network of abandoned mines and tunnels.
东挖西掘后留下了一片废弃的矿坑。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。

immobile

adj. 固定的，不变的，稳定的；

例句
Joe remained as immobile as if he had been carved out of rock.
乔一动不动,仿佛一尊石头雕像。