Bob runs down the floor.runs 这句话如何翻译?

run down
停止走动, 用完
That clock ran down hours ago.
那座钟在几小时以前就停了.
撞倒, 撞沉
It was so foggy that the steamship almost ran down a small boat leaving the port.
雾很大, 汽艇差点把一只正在离港的小船撞沉.
诽谤, 贬低
He's always running me down.
他总是讲我的坏话.
走下坡路, 垮掉
The coal industry is running down.
煤矿业正在逐渐走下坡路.
(使)虚弱, 疲乏
This exhausting work is enough to run everyone down.
这项费力的工作足以使人精疲力竭.
你单独写一个句子很那解释清楚,应该联系上下文翻译,我把run down的意思都给你复制下来,希望有你要的那个解释!