目送某人离开用英文怎么说

"See someone off" 是指在某人离开之前为其送行。这个短语最早起源于英语中的一个古老的习惯，即在某人离家出门时为其送行。

例句：

I went to the airport to see my friend off before he left for his vacation. (我去了机场目送我的朋友度假离开)
We all gathered at the train station to see our colleague off as she moved to a new city. (我们所有人都聚在火车站目送我们的同事搬到新城市)