| 单词 | observation aircraft |
| 释义 | > as lemmasobservation aircraft observation aircraft n. ΚΠ 1942 R. A. Griffin School of Citizen Soldier xxvii. 411 A tremendous change in observation aircraft is about to come. 2001 Herald (Glasgow) (Electronic ed.) 14 Mar. A flotilla of ships is taking tourists and the sky will be busy with observation aircraft. < as lemmas |
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