详细解释:n. * , 着弹点观察员
【法】 * , 秘密监视人
英语解释：
名词 spotter:
a worker employed at a dry-cleaning establishment to remove spotsa worker employed to apply spots (as markers or identifiers)a person employed to watch for something to happen同义词：lookout, lookout man, sentinel, sentry, watch, scout, picket