observation balloon
英[ˌɔbzə:ˈveiʃən bəˈlu:n]美[ˌɑbzɚˈveʃən bəˈlun]
USS Arizona. This balloon has a two-man crew that performed artillery spotting in support of the battleship's main guns.
observation balloon中文，observation balloon的意思，observation balloon翻译及用法
2026-10-18 04:05 浏览次数 28