spotter
n. 着弹点观察员；监视人；测位仪；检路器
复数 spotters
例句
If you often lose things, you'll be happy with a new invention called Things Spotter.
如果你经常丢东西，你会很高兴有一项新发明，叫做“东西测位仪”。
He glanced at his Spotter again.
他又看了侦察员一眼。
As the spotter, he landed them safely.
作为观测员，他让他们安全地着陆。
