单词	backsight
释义	backsight noun 1 surveying : a reading of the leveling rod in its unchanged position when the leveling instrument has been taken to a new position 2 surveying : a sight directed backward to a previous station Word History First Known Use 1847, in the meaning defined at sense 1
随便看	locust bean flour locust bean gum locust bean gum powder locust beetle locust bird locust borer locust eater locust leaf miner locust lobster locust plant locust pod locust shrimp locust tree Locusta locustae locustal locustarian locustas locustberry locustelle Locustidae locustidaes locustlike locusts locution

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