standing by

基本解释

All along the way, people were standing by the road to show their respect.
沿途每到一地，都有人站在路旁，表达他们的敬意。
There were two witnesses who happened to be standing by when the accident happened.
事故发生的时候恰好有两名目击者在场。
It was common along major interstate highways to see individuals (mostly male) standing by the side of the entrance ramp with a cardboard sign on which their destination would be hand-written.
在主要的州际公路旁，经常可以看到一些人（多为男性）站在匝道入口处，随身带着一块纸板，上面是手写的搭车目的地。

He saw himself and his friends unemployed and standing by a road, asking for food.
So, literally earlier today when I was on my way to campus I emerged from the Harvard Subway Station and I was about to exit the station up the stairs when I noticed this older woman who was standing by one of these things.
今天早些时候，在我从哈佛地铁站,到学校的路上,我即将走出地铁站，上楼梯时,我注意到一个老太太站在,这样的东西旁边。
哈佛公开课 - 计算机科学课程节选
Now, that's a very important point, because why in the world would you give a shield of the kind I am describing, for a man to defend himself, if you imagine him standing by himself anywhere, if you imagine him any distance from the rest of the guys fighting alongside of him.
这点非常关键,那就是到底为什么要将,这样一种盾牌,给士兵们使用,想象一下这个场景,这个士兵在战场的某个角落孤军奋战,与其它友军士兵相隔甚远
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As the President spoke, Secretary of State Hillary Clinton was standing by his side.
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