举个身边的例子，我这个网站的设计就是通过物物交换完成的，我因此节省了1000多美元。

My website design was done through the barter system, so I saved well over $1,000 there, for example.

youdao

举个简间的例子，如果有人跳楼，在其身边的人有很多人会盲目地选择与其一起跳下去，于是事故做在此产生了。

Let me just take one simple example to explain, if there is someone jumping from the building, others who around him would choose to jump with him, so accident happened.

youdao