seeing someone off

常见例句

That day, accidentally, I saw a net friend's poster about seeing someone off at the airport, very touching
这天，不经意的看到一个网友写了一篇关于机场送别的帖子，情深感人。
That day, accidentally, I saw a net friend's poster about seeing someone off at the airport, touching indeed.
这天，不经意的看到一个网友写了一篇关于机场送别的帖子，情深感人。
This can lead to very unusual scenarios, such as an observer witnessing effect before cause (for example, seeing a bomb go off, then later seeing someone light the fuse).
比如说，有人会先看到事件的结果再看到原因。（例如，先看到炸弹爆炸再看到有人点燃引信。）