原级：spotter
1. spotters
1. England has sent 50 uniformed officers outside the country for the first time, in addition to 14 spotters.
2. By the time those spotters arrived, the powerful Santa Ana winds stoking the fires had made it too dangerous to fly.
3. spotters的近义词
3. During World War II, aircraft spotters sometimes mistook Venus for an enemy airplane.
4. Social media spread fears that a mass suicide was being planned on a mountain popular among UFO spotters in Argentina.