spotters

例句:

• As a government instructor revved the vehicle , spotters squinted and quibbled over the readings.
  一位政府指派的教员发动卡车时, 检举员们眯缝着眼睛观测,争论有多少烟度单位.
  
• Four spotters must be positioned a trampoline while it is in use.
  当弹网正被使用时,必须有四位保护员包围著弹网,以作保护.
  
• Or maybe it would turn a profit by selling seats exclusively to train - spotters.
  或者,它将通过专门向火车迷售票而获利?
  
• It's a major hot-bed of inspiration for fashion-spotters .
  来自THETIMES
• Sometimes the other countries, their spotters don't even catch them.
  来自WSJ
• He ordered a halt to the spraying until the spotters could be sufficiently trained.
  来自NEWYORKER