spotting fire

例句：

1. 1. He spottedthe thief in the crowd.
   他在人群中发现了那个小偷。
2. 2. The detective spotted a clueon the wall.
   侦探在墙上发现了一个线索。
3. 3. She noticed that the book was missingfrom her bag.
   她注意到书从她的包里不见了。