adj.有斑点的，有污点的，弄脏的，〈口〉受注意的
v.发现，玷污
The spotter planes reported splashes as hits, then corrected themselves.
弹着观测机把溅起的水柱汇报成命中, 然后自行更正.
I was a devoted train spotter.
我是个酷爱看火车的人。
He's an avid train - spotter.
他特别喜欢观察火车.
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