| 单词 | observation plane |
| 释义 | > as lemmasobservation plane observation plane n. ΚΠ 1920 T. M. Knappen Wings of War xxi. 202 The two-place observation 'plane has to fight an unequal battle before it can get away with its information. 2000 Canoeist Apr. 38/1 Their only encounter with civilization had been earlier when the tiny army observation plane had flown low over them. < as lemmas |
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