- perambulator
- 勘察: reconnaissance; survey
- 勘察: 1.(实地调查) reconnaissance; survey:勘察地形 terrain reconnaissance;实地勘察 on-the-spot survey;联合勘察队 joint survey team2.[地质学] (勘探) prospecting◇勘察员 scout
- 观察者: observer; scrutator; viewer
- 监察者: watcher
- 考察者: fieldworker
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