1. 侦查员：狙击手和侦查员(spotter)被分开,然后侦查员必须使用无线电将狙击手指向三个目标. 有些目标仅仅是对侦查员可见的,这就迫使狙击手要穿越障碍去击中一个隐藏的目标.

2. 私人侦探：spotted 有斑点的 | spotter 私人侦探 | spottiness 遍处斑点

1. 以观看(火车或飞机等)为癖好的人
A spotter of something such as trains or aeroplanes is someone whose hobby is watching and finding out about them.

e.g. I was a devoted train spotter.
我是个酷爱看火车的人。

noun

1. someone who is the first to observe something

Synonym: finderdiscoverer

2. a person employed to keep watch for some anticipated event

Synonym: lookoutlookout mansentinelsentrywatchscoutpicket

3. a worker employed to apply spots (as markers or identifiers)

4. a worker employed at a dry-cleaning establishment to remove spots