1, He lost his sight in a traffic accident. 2, After a while, we will lost sight of him. 3, Once I catch sight of the professor,然后怎么了。。。。我也不知道,一般是把漫画藏起来了吧 at the sight of意思是当某人看到什么了。。。比如 She ran at the sight of the man. 她看到那个男人就跑掉了。